80556766808 has 32 divisors (see below), whose sum is σ = 181706995200. Its totient is φ = 32707258272.

The previous prime is 80556766799. The next prime is 80556766817. The reversal of 80556766808 is 80866765508.

It is an interprime number because it is at equal distance from previous prime (80556766799) and next prime (80556766817).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37854560 + ... + 37856687.

It is an arithmetic number, because the mean of its divisors is an integer number (5678343600).

Almost surely, 2^80556766808 is an apocalyptic number.

It is an amenable number.

80556766808 is an abundant number, since it is smaller than the sum of its proper divisors (101150228392).

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

80556766808 is a wasteful number, since it uses less digits than its factorization.

80556766808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75711279 (or 75711275 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 59.

The spelling of 80556766808 in words is "eighty billion, five hundred fifty-six million, seven hundred sixty-six thousand, eight hundred eight".