160685477280 has 72 divisors (see below), whose sum is σ = 548339196132. Its totient is φ = 42849460224.

The previous prime is 160685477213. The next prime is 160685477291. The reversal of 160685477280 is 82774586061.

160685477280 is a `hidden beast` number, since 1 + 606 + 8 + 5 + 4 + 7 + 7 + 28 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 156882535056 + 3802942224 = 396084^2 + 61668^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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, 55792129 + ... + 55795008.

Almost surely, 2^160685477280 is an apocalyptic number.

160685477280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

160685477280 is an abundant number, since it is smaller than the sum of its proper divisors (387653718852).

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

160685477280 is a wasteful number, since it uses less digits than its factorization.

160685477280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111587158 (or 111587147 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 160685477280 in words is "one hundred sixty billion, six hundred eighty-five million, four hundred seventy-seven thousand, two hundred eighty".