80866064 has 10 divisors (see below), whose sum is σ = 156678030. Its totient is φ = 40433024.

The previous prime is 80866057. The next prime is 80866067. The reversal of 80866064 is 46066808.

It can be written as a sum of positive squares in only one way, i.e., 80856064 + 10000 = 8992^2 + 100^2 .

It is not an unprimeable number, because it can be changed into a prime (80866067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527049 + ... + 2527080.

It is an arithmetic number, because the mean of its divisors is an integer number (15667803).

Almost surely, 2^80866064 is an apocalyptic number.

It is an amenable number.

80866064 is a deficient number, since it is larger than the sum of its proper divisors (75811966).

80866064 is a wasteful number, since it uses less digits than its factorization.

80866064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5054137 (or 5054131 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 80866064 is about 8992.5560326305. The cubic root of 80866064 is about 432.4362591086.

The spelling of 80866064 in words is "eighty million, eight hundred sixty-six thousand, sixty-four".