6721055692 has 12 divisors (see below), whose sum is σ = 12666605056. Its totient is φ = 3102025680.

The previous prime is 6721055681. The next prime is 6721055711. The reversal of 6721055692 is 2965501276.

It is a super-2 number, since 2×6721055692² = 90345179229931197728, which contains 22 as substring.

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, 64625484 + ... + 64625587.

Almost surely, 2^6721055692 is an apocalyptic number.

It is an amenable number.

6721055692 is a deficient number, since it is larger than the sum of its proper divisors (5945549364).

6721055692 is a wasteful number, since it uses less digits than its factorization.

6721055692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129251088 (or 129251086 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 6721055692 is about 81982.0449366811. The cubic root of 6721055692 is about 1887.1764050435.

The spelling of 6721055692 in words is "six billion, seven hundred twenty-one million, fifty-five thousand, six hundred ninety-two".