161474940936 has 64 divisors (see below), whose sum is σ = 450795600000. Its totient is φ = 53554488768.

The previous prime is 161474940911. The next prime is 161474940971. The reversal of 161474940936 is 639049474161.

161474940936 is a `hidden beast` number, since 1 + 6 + 147 + 494 + 0 + 9 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1835331 + ... + 1921298.

It is an arithmetic number, because the mean of its divisors is an integer number (7043681250).

Almost surely, 2^161474940936 is an apocalyptic number.

It is an amenable number.

161474940936 is an abundant number, since it is smaller than the sum of its proper divisors (289320659064).

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

161474940936 is a wasteful number, since it uses less digits than its factorization.

161474940936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756843 (or 3756833 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 161474940936 in words is "one hundred sixty-one billion, four hundred seventy-four million, nine hundred forty thousand, nine hundred thirty-six".