666113586 has 16 divisors (see below), whose sum is σ = 1378166400. Its totient is φ = 214381328.

The previous prime is 666113579. The next prime is 666113621. The reversal of 666113586 is 685311666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1913946 + ... + 1914293.

It is an arithmetic number, because the mean of its divisors is an integer number (86135400).

Almost surely, 2^666113586 is an apocalyptic number.

666113586 is an abundant number, since it is smaller than the sum of its proper divisors (712052814).

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

666113586 is a wasteful number, since it uses less digits than its factorization.

666113586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828273.

The product of its digits is 155520, while the sum is 42.

The square root of 666113586 is about 25809.1763913535. The cubic root of 666113586 is about 873.3388176659.

The spelling of 666113586 in words is "six hundred sixty-six million, one hundred thirteen thousand, five hundred eighty-six".