80621523164 has 48 divisors (see below), whose sum is σ = 173735654400. Its totient is φ = 31877827776.

The previous prime is 80621523139. The next prime is 80621523187. The reversal of 80621523164 is 46132512608.

It is a congruent number.

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, 664397 + ... + 776315.

It is an arithmetic number, because the mean of its divisors is an integer number (3619492800).

Almost surely, 2^80621523164 is an apocalyptic number.

It is an amenable number.

80621523164 is an abundant number, since it is smaller than the sum of its proper divisors (93114131236).

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

80621523164 is a wasteful number, since it uses less digits than its factorization.

80621523164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113922 (or 113920 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 80621523164 in words is "eighty billion, six hundred twenty-one million, five hundred twenty-three thousand, one hundred sixty-four".