5721951660 has 24 divisors (see below), whose sum is σ = 16021464816. Its totient is φ = 1525853760.

The previous prime is 5721951659. The next prime is 5721951667. The reversal of 5721951660 is 661591275.

It is not an unprimeable number, because it can be changed into a prime (5721951667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47682871 + ... + 47682990.

It is an arithmetic number, because the mean of its divisors is an integer number (667561034).

Almost surely, 2^5721951660 is an apocalyptic number.

It is an amenable number.

5721951660 is an abundant number, since it is smaller than the sum of its proper divisors (10299513156).

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

5721951660 is a wasteful number, since it uses less digits than its factorization.

5721951660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95365873 (or 95365871 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 5721951660 is about 75643.5830721946. The cubic root of 5721951660 is about 1788.6061848150.

The spelling of 5721951660 in words is "five billion, seven hundred twenty-one million, nine hundred fifty-one thousand, six hundred sixty".