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61107552801 = 3243933914561
BaseRepresentation
bin111000111010010010…
…110100001000100001
312211201200122022120100
4320322102310020201
52000122013142201
644023350533013
74262205425421
oct707222641041
9184650568510
1061107552801
1123a08690959
12ba14967169
1359bb053889
142d599da481
1518c9acb886
hexe3a4b4221

61107552801 has 24 divisors (see below), whose sum is σ = 88513018880. Its totient is φ = 40624675200.

The previous prime is 61107552799. The next prime is 61107552817. The reversal of 61107552801 is 10825570116.

61107552801 is a `hidden beast` number, since 61 + 1 + 0 + 75 + 528 + 0 + 1 = 666.

It is not a de Polignac number, because 61107552801 - 21 = 61107552799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61107552841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13395561 + ... + 13400121.

Almost surely, 261107552801 is an apocalyptic number.

It is an amenable number.

61107552801 is a deficient number, since it is larger than the sum of its proper divisors (27405466079).

61107552801 is a wasteful number, since it uses less digits than its factorization.

61107552801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8397 (or 8394 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

The spelling of 61107552801 in words is "sixty-one billion, one hundred seven million, five hundred fifty-two thousand, eight hundred one".

Divisors: 1 3 9 439 1317 3391 3951 4561 10173 13683 30519 41049 1488649 2002279 4465947 6006837 13397841 15466351 18020511 46399053 139197159 6789728089 20369184267 61107552801