10721731216 has 40 divisors (see below), whose sum is σ = 23750346944. Its totient is φ = 4593214080.

The previous prime is 10721731193. The next prime is 10721731249. The reversal of 10721731216 is 61213712701.

It is a super-2 number, since 2×10721731216² (a number of 21 digits) contains 22 as substring.

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, 288346 + ... + 323398.

Almost surely, 2^10721731216 is an apocalyptic number.

10721731216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10721731216 is an abundant number, since it is smaller than the sum of its proper divisors (13028615728).

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

10721731216 is a wasteful number, since it uses less digits than its factorization.

10721731216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37799 (or 37793 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 31.

The spelling of 10721731216 in words is "ten billion, seven hundred twenty-one million, seven hundred thirty-one thousand, two hundred sixteen".