10664639472 has 20 divisors (see below), whose sum is σ = 27550318760. Its totient is φ = 3554879808.

The previous prime is 10664639443. The next prime is 10664639501. The reversal of 10664639472 is 27493646601.

It is an interprime number because it is at equal distance from previous prime (10664639443) and next prime (10664639501).

It is a super-2 number, since 2×10664639472² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 222179989 = 10664639472 / (1 + 0 + 6 + 6 + 4 + 6 + 3 + 9 + 4 + 7 + 2).

It is a congruent number.

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, 111089947 + ... + 111090042.

It is an arithmetic number, because the mean of its divisors is an integer number (1377515938).

Almost surely, 2^10664639472 is an apocalyptic number.

10664639472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10664639472 is an abundant number, since it is smaller than the sum of its proper divisors (16885679288).

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

10664639472 is a wasteful number, since it uses less digits than its factorization.

10664639472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222180000 (or 222179994 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 10664639472 in words is "ten billion, six hundred sixty-four million, six hundred thirty-nine thousand, four hundred seventy-two".