11526631020 has 96 divisors (see below), whose sum is σ = 35901196800. Its totient is φ = 3070291392.

The previous prime is 11526631019. The next prime is 11526631087. The reversal of 11526631020 is 2013662511.

11526631020 is a `hidden beast` number, since 1 + 1 + 5 + 2 + 6 + 631 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 484647 + ... + 507873.

It is an arithmetic number, because the mean of its divisors is an integer number (373970800).

Almost surely, 2^11526631020 is an apocalyptic number.

11526631020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11526631020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17950598400).

11526631020 is an abundant number, since it is smaller than the sum of its proper divisors (24374565780).

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

11526631020 is a wasteful number, since it uses less digits than its factorization.

11526631020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24164 (or 24156 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 11526631020 in words is "eleven billion, five hundred twenty-six million, six hundred thirty-one thousand, twenty".