666116710 has 32 divisors (see below), whose sum is σ = 1376212032. Its totient is φ = 227397120.

The previous prime is 666116701. The next prime is 666116713. The reversal of 666116710 is 17611666.

It is a super-2 number, since 2×666116710² = 887422942682448200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666116713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4111 + ... + 36730.

It is an arithmetic number, because the mean of its divisors is an integer number (43006626).

Almost surely, 2^666116710 is an apocalyptic number.

666116710 is an abundant number, since it is smaller than the sum of its proper divisors (710095322).

666116710 is a wasteful number, since it uses less digits than its factorization.

666116710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41088.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 666116710 is about 25809.2369123924. The cubic root of 666116710 is about 873.3401829517.

The spelling of 666116710 in words is "six hundred sixty-six million, one hundred sixteen thousand, seven hundred ten".