161872964352 has 144 divisors (see below), whose sum is σ = 522204063360. Its totient is φ = 49052390400.

The previous prime is 161872964347. The next prime is 161872964381. The reversal of 161872964352 is 253469278161.

It is a happy number.

161872964352 is a `hidden beast` number, since 1 + 6 + 187 + 29 + 6 + 435 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 988474 + ... + 1140537.

Almost surely, 2^161872964352 is an apocalyptic number.

161872964352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161872964352 is an abundant number, since it is smaller than the sum of its proper divisors (360331099008).

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

161872964352 is a wasteful number, since it uses less digits than its factorization.

161872964352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129047 (or 2129027 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 161872964352 in words is "one hundred sixty-one billion, eight hundred seventy-two million, nine hundred sixty-four thousand, three hundred fifty-two".