80664585428 has 12 divisors (see below), whose sum is σ = 161329170912. Its totient is φ = 34570536600.

The previous prime is 80664585403. The next prime is 80664585451. The reversal of 80664585428 is 82458546608.

80664585428 is an admirable number.

It is a super-2 number, since 2×80664585428² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440438998 + ... + 1440439053.

It is an arithmetic number, because the mean of its divisors is an integer number (13444097576).

Almost surely, 2^80664585428 is an apocalyptic number.

It is an amenable number.

80664585428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

80664585428 is a wasteful number, since it uses less digits than its factorization.

80664585428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880878062 (or 2880878060 counting only the distinct ones).

The product of its (nonzero) digits is 14745600, while the sum is 56.

The spelling of 80664585428 in words is "eighty billion, six hundred sixty-four million, five hundred eighty-five thousand, four hundred twenty-eight".