716663660 has 48 divisors (see below), whose sum is σ = 1638856800. Its totient is φ = 262209024.

The previous prime is 716663653. The next prime is 716663677. The reversal of 716663660 is 66366617.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21497 + ... + 43536.

It is an arithmetic number, because the mean of its divisors is an integer number (34142850).

Almost surely, 2^716663660 is an apocalyptic number.

It is an amenable number.

716663660 is an abundant number, since it is smaller than the sum of its proper divisors (922193140).

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

716663660 is a wasteful number, since it uses less digits than its factorization.

716663660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65090 (or 65088 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 716663660 is about 26770.5745175557. The cubic root of 716663660 is about 894.8944082330.

The spelling of 716663660 in words is "seven hundred sixteen million, six hundred sixty-three thousand, six hundred sixty".