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66852101024 = 252390831659
BaseRepresentation
bin111110010000101100…
…100001101110100000
320101120001000121021122
4332100230201232200
52043403114213044
650413400311412
74554441324422
oct762054415640
9211501017248
1066852101024
11263962a4a75
1210b58772568
1363c521b637
143342910812
151b140a4dee
hexf90b21ba0

66852101024 has 24 divisors (see below), whose sum is σ = 137337469920. Its totient is φ = 31972743616.

The previous prime is 66852101021. The next prime is 66852101053. The reversal of 66852101024 is 42010125866.

It is a super-2 number, since 2×668521010242 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66852101021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45415094 + ... + 45416565.

It is an arithmetic number, because the mean of its divisors is an integer number (5722394580).

Almost surely, 266852101024 is an apocalyptic number.

It is an amenable number.

66852101024 is an abundant number, since it is smaller than the sum of its proper divisors (70485368896).

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

66852101024 is a wasteful number, since it uses less digits than its factorization.

66852101024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90831692 (or 90831684 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 66852101024 in words is "sixty-six billion, eight hundred fifty-two million, one hundred one thousand, twenty-four".

Divisors: 1 2 4 8 16 23 32 46 92 184 368 736 90831659 181663318 363326636 726653272 1453306544 2089128157 2906613088 4178256314 8356512628 16713025256 33426050512 66852101024