80902788664 has 64 divisors (see below), whose sum is σ = 156454272000. Its totient is φ = 39205555200.

The previous prime is 80902788653. The next prime is 80902788697. The reversal of 80902788664 is 46688720908.

It is a super-2 number, since 2×80902788664² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80902788599 and 80902788608.

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, 9230044 + ... + 9238804.

It is an arithmetic number, because the mean of its divisors is an integer number (2444598000).

Almost surely, 2^80902788664 is an apocalyptic number.

It is an amenable number.

80902788664 is a deficient number, since it is larger than the sum of its proper divisors (75551483336).

80902788664 is a wasteful number, since it uses less digits than its factorization.

80902788664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9104 (or 9100 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 58.

The spelling of 80902788664 in words is "eighty billion, nine hundred two million, seven hundred eighty-eight thousand, six hundred sixty-four".