10644997632 has 80 divisors (see below), whose sum is σ = 29592034560. Its totient is φ = 3394045952.

The previous prime is 10644997591. The next prime is 10644997639. The reversal of 10644997632 is 23679944601.

It is a happy number.

It is a super-2 number, since 2×10644997632² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10644997639) 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, 115332 + ... + 185987.

It is an arithmetic number, because the mean of its divisors is an integer number (369900432).

Almost surely, 2^10644997632 is an apocalyptic number.

10644997632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10644997632 is an abundant number, since it is smaller than the sum of its proper divisors (18947036928).

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

10644997632 is an equidigital number, since it uses as much as digits as its factorization.

10644997632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301363 (or 301347 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 10644997632 in words is "ten billion, six hundred forty-four million, nine hundred ninety-seven thousand, six hundred thirty-two".