10721988006 has 16 divisors (see below), whose sum is σ = 21555087024. Its totient is φ = 3555477504.

The previous prime is 10721987989. The next prime is 10721988019. The reversal of 10721988006 is 60088912701.

It is a super-2 number, since 2×10721988006² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 4628371 + ... + 4630686.

It is an arithmetic number, because the mean of its divisors is an integer number (1347192939).

Almost surely, 2^10721988006 is an apocalyptic number.

10721988006 is an abundant number, since it is smaller than the sum of its proper divisors (10833099018).

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

10721988006 is a wasteful number, since it uses less digits than its factorization.

10721988006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9259255.

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 10721988006 in words is "ten billion, seven hundred twenty-one million, nine hundred eighty-eight thousand, six".