80566135502 has 4 divisors (see below), whose sum is σ = 120849203256. Its totient is φ = 40283067750.

The previous prime is 80566135469. The next prime is 80566135519. The reversal of 80566135502 is 20553166508.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 80566135502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20141533874 + ... + 20141533877.

It is an arithmetic number, because the mean of its divisors is an integer number (30212300814).

Almost surely, 2^80566135502 is an apocalyptic number.

80566135502 is a deficient number, since it is larger than the sum of its proper divisors (40283067754).

80566135502 is a wasteful number, since it uses less digits than its factorization.

80566135502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40283067753.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 80566135502 in words is "eighty billion, five hundred sixty-six million, one hundred thirty-five thousand, five hundred two".