11621056375 has 16 divisors (see below), whose sum is σ = 14840366112. Its totient is φ = 9080635200.

The previous prime is 11621056309. The next prime is 11621056379. The reversal of 11621056375 is 57365012611.

It is not a de Polignac number, because 11621056375 - 2⁷ = 11621056247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621056379) 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, 1075654 + ... + 1086403.

It is an arithmetic number, because the mean of its divisors is an integer number (927522882).

Almost surely, 2^11621056375 is an apocalyptic number.

11621056375 is a deficient number, since it is larger than the sum of its proper divisors (3219309737).

11621056375 is an equidigital number, since it uses as much as digits as its factorization.

11621056375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162115 (or 2162105 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

Adding to 11621056375 its reverse (57365012611), we get a palindrome (68986068986).

The spelling of 11621056375 in words is "eleven billion, six hundred twenty-one million, fifty-six thousand, three hundred seventy-five".