10644264345 has 32 divisors (see below), whose sum is σ = 20008243584. Its totient is φ = 4763865600.

The previous prime is 10644264331. The next prime is 10644264361. The reversal of 10644264345 is 54346244601.

It is not a de Polignac number, because 10644264345 - 2¹⁷ = 10644133273 is a prime.

It is a super-2 number, since 2×10644264345² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2479036 + ... + 2483325.

It is an arithmetic number, because the mean of its divisors is an integer number (625257612).

Almost surely, 2^10644264345 is an apocalyptic number.

10644264345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10644264345 is a deficient number, since it is larger than the sum of its proper divisors (9363979239).

10644264345 is a wasteful number, since it uses less digits than its factorization.

10644264345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4962393.

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 10644264345 in words is "ten billion, six hundred forty-four million, two hundred sixty-four thousand, three hundred forty-five".