161000414640 has 200 divisors, whose sum is σ = 602192321808. Its totient is φ = 39630850560.

The previous prime is 161000414629. The next prime is 161000414681. The reversal of 161000414640 is 46414000161.

161000414640 is a `hidden beast` number, since 1 + 6 + 1 + 0 + 0 + 0 + 4 + 14 + 640 = 666.

It is a super-2 number, since 2×161000414640² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 871366 + ... + 1039845.

Almost surely, 2^161000414640 is an apocalyptic number.

161000414640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161000414640 is an abundant number, since it is smaller than the sum of its proper divisors (441191907168).

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

161000414640 is a wasteful number, since it uses less digits than its factorization.

161000414640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911249 (or 1911234 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 161000414640 in words is "one hundred sixty-one billion, four hundred fourteen thousand, six hundred forty".