80538415136 has 24 divisors (see below), whose sum is σ = 158568484284. Its totient is φ = 40267054080.

The previous prime is 80538415103. The next prime is 80538415163. The reversal of 80538415136 is 63151483508.

It can be written as a sum of positive squares in 2 ways, for example, as 76041371536 + 4497043600 = 275756^2 + 67060^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662036 + ... + 774188.

Almost surely, 2^80538415136 is an apocalyptic number.

It is an amenable number.

80538415136 is a deficient number, since it is larger than the sum of its proper divisors (78030069148).

80538415136 is a wasteful number, since it uses less digits than its factorization.

80538415136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134604 (or 134596 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 80538415136 in words is "eighty billion, five hundred thirty-eight million, four hundred fifteen thousand, one hundred thirty-six".