80912516 has 12 divisors (see below), whose sum is σ = 145050780. Its totient is φ = 39469440.

The previous prime is 80912479. The next prime is 80912527. The reversal of 80912516 is 61521908.

It can be written as a sum of positive squares in 2 ways, for example, as 5152900 + 75759616 = 2270^2 + 8704^2 .

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, 246521 + ... + 246848.

It is an arithmetic number, because the mean of its divisors is an integer number (12087565).

Almost surely, 2^80912516 is an apocalyptic number.

It is an amenable number.

80912516 is a deficient number, since it is larger than the sum of its proper divisors (64138264).

80912516 is a wasteful number, since it uses less digits than its factorization.

80912516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493414 (or 493412 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 80912516 is about 8995.1384647486. The cubic root of 80912516 is about 432.5190449029.

The spelling of 80912516 in words is "eighty million, nine hundred twelve thousand, five hundred sixteen".