7214686660 has 24 divisors (see below), whose sum is σ = 15206760576. Its totient is φ = 2875223520.

The previous prime is 7214686651. The next prime is 7214686679. The reversal of 7214686660 is 666864127.

It is a self number, because there is not a number n which added to its sum of digits gives 7214686660.

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, 660142 + ... + 670981.

It is an arithmetic number, because the mean of its divisors is an integer number (633615024).

Almost surely, 2^7214686660 is an apocalyptic number.

It is an amenable number.

7214686660 is an abundant number, since it is smaller than the sum of its proper divisors (7992073916).

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

7214686660 is a wasteful number, since it uses less digits than its factorization.

7214686660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331403 (or 1331401 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 7214686660 is about 84939.3116289507. The cubic root of 7214686660 is about 1932.2908232707.

The spelling of 7214686660 in words is "seven billion, two hundred fourteen million, six hundred eighty-six thousand, six hundred sixty".