10663621525 has 12 divisors (see below), whose sum is σ = 13291409092. Its totient is φ = 8486691840.

The previous prime is 10663621513. The next prime is 10663621559. The reversal of 10663621525 is 52512636601.

It can be written as a sum of positive squares in 6 ways, for example, as 414488881 + 10249132644 = 20359^2 + 101238^2 .

It is not a de Polignac number, because 10663621525 - 2²⁵ = 10630067093 is a prime.

It is a super-2 number, since 2×10663621525² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1100214 + ... + 1109863.

Almost surely, 2^10663621525 is an apocalyptic number.

It is an amenable number.

10663621525 is a deficient number, since it is larger than the sum of its proper divisors (2627787567).

10663621525 is a wasteful number, since it uses less digits than its factorization.

10663621525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210280 (or 2210275 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 10663621525 in words is "ten billion, six hundred sixty-three million, six hundred twenty-one thousand, five hundred twenty-five".