11625640520 has 32 divisors (see below), whose sum is σ = 28169822520. Its totient is φ = 4292544000.

The previous prime is 11625640483. The next prime is 11625640529. The reversal of 11625640520 is 2504652611.

It can be written as a sum of positive squares in 4 ways, for example, as 5151507076 + 6474133444 = 71774^2 + 80462^2 .

It is not an unprimeable number, because it can be changed into a prime (11625640529) 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, 11177981 + ... + 11179020.

Almost surely, 2^11625640520 is an apocalyptic number.

11625640520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11625640520 is an abundant number, since it is smaller than the sum of its proper divisors (16544182000).

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

11625640520 is a wasteful number, since it uses less digits than its factorization.

11625640520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22357025 (or 22357021 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 11625640520 in words is "eleven billion, six hundred twenty-five million, six hundred forty thousand, five hundred twenty".