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161160160400 = 24522503160967
BaseRepresentation
bin1001011000010111100…
…1001110010010010000
3120101222112021101212122
42112011321032102100
510120024000113100
6202011433313412
714433461522021
oct2260571162220
9511875241778
10161160160400
1162390788908
1227298265868
1312274722575
147b2ba32c48
1542d3758985
hex2585e4e490

161160160400 has 60 divisors (see below), whose sum is σ = 387344380992. Its totient is φ = 64437909120.

The previous prime is 161160160397. The next prime is 161160160417. The reversal of 161160160400 is 4061061161.

It is a self number, because there is not a number n which added to its sum of digits gives 161160160400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 920717 + ... + 1081683.

Almost surely, 2161160160400 is an apocalyptic number.

161160160400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161160160400 is an abundant number, since it is smaller than the sum of its proper divisors (226184220592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161160160400 is a wasteful number, since it uses less digits than its factorization.

161160160400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163488 (or 163477 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 161160160400 in words is "one hundred sixty-one billion, one hundred sixty million, one hundred sixty thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 2503 5006 10012 12515 20024 25030 40048 50060 62575 100120 125150 160967 200240 250300 321934 500600 643868 804835 1001200 1287736 1609670 2575472 3219340 4024175 6438680 8048350 12877360 16096700 32193400 64386800 402900401 805800802 1611601604 2014502005 3223203208 4029004010 6446406416 8058008020 10072510025 16116016040 20145020050 32232032080 40290040100 80580080200 161160160400