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57660832161 = 326406759129
BaseRepresentation
bin110101101100110110…
…100111100110100001
312111211111000202201100
4311230312213212201
51421042133112121
642253343425013
74110613662252
oct655466474641
9174744022640
1057660832161
11224aa0446a9
12b2125b5169
13558bc501ca
142b0dd4ab29
1517771e6026
hexd6cda79a1

57660832161 has 6 divisors (see below), whose sum is σ = 83287868690. Its totient is φ = 38440554768.

The previous prime is 57660832127. The next prime is 57660832189. The reversal of 57660832161 is 16123806675.

57660832161 is a `hidden beast` number, since 5 + 7 + 6 + 608 + 32 + 1 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56968142400 + 692689761 = 238680^2 + 26319^2 .

It is not a de Polignac number, because 57660832161 - 221 = 57658735009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57660832661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3203379556 + ... + 3203379573.

Almost surely, 257660832161 is an apocalyptic number.

It is an amenable number.

57660832161 is a deficient number, since it is larger than the sum of its proper divisors (25627036529).

57660832161 is a wasteful number, since it uses less digits than its factorization.

57660832161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6406759135 (or 6406759132 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 57660832161 in words is "fifty-seven billion, six hundred sixty million, eight hundred thirty-two thousand, one hundred sixty-one".

Divisors: 1 3 9 6406759129 19220277387 57660832161