10640644527 has 16 divisors (see below), whose sum is σ = 14237032320. Its totient is φ = 7069048800.

The previous prime is 10640644517. The next prime is 10640644561. The reversal of 10640644527 is 72544604601.

It is not a de Polignac number, because 10640644527 - 2¹² = 10640640431 is a prime.

It is a super-2 number, since 2×10640644527² (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 (10640644517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1279252 + ... + 1287542.

It is an arithmetic number, because the mean of its divisors is an integer number (889814520).

Almost surely, 2^10640644527 is an apocalyptic number.

10640644527 is a deficient number, since it is larger than the sum of its proper divisors (3596387793).

10640644527 is a wasteful number, since it uses less digits than its factorization.

10640644527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9734.

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 10640644527 in words is "ten billion, six hundred forty million, six hundred forty-four thousand, five hundred twenty-seven".