80650660 has 12 divisors (see below), whose sum is σ = 169366428. Its totient is φ = 32260256.

The previous prime is 80650631. The next prime is 80650679. The reversal of 80650660 is 6605608.

It can be written as a sum of positive squares in 2 ways, for example, as 20557156 + 60093504 = 4534^2 + 7752^2 .

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, 2016247 + ... + 2016286.

It is an arithmetic number, because the mean of its divisors is an integer number (14113869).

Almost surely, 2^80650660 is an apocalyptic number.

It is an amenable number.

80650660 is an abundant number, since it is smaller than the sum of its proper divisors (88715768).

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

80650660 is a wasteful number, since it uses less digits than its factorization.

80650660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032542 (or 4032540 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 80650660 is about 8980.5712513180. The cubic root of 80650660 is about 432.0519556282.

The spelling of 80650660 in words is "eighty million, six hundred fifty thousand, six hundred sixty".