162180581736 has 32 divisors (see below), whose sum is σ = 407879317440. Its totient is φ = 53736478848.

The previous prime is 162180581687. The next prime is 162180581749. The reversal of 162180581736 is 637185081261.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20228101 + ... + 20236116.

It is an arithmetic number, because the mean of its divisors is an integer number (12746228670).

Almost surely, 2^162180581736 is an apocalyptic number.

It is an amenable number.

162180581736 is an abundant number, since it is smaller than the sum of its proper divisors (245698735704).

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

162180581736 is a wasteful number, since it uses less digits than its factorization.

162180581736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40464393 (or 40464389 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 162180581736 in words is "one hundred sixty-two billion, one hundred eighty million, five hundred eighty-one thousand, seven hundred thirty-six".