11570431616 has 64 divisors (see below), whose sum is σ = 23799260160. Its totient is φ = 5598950400.

The previous prime is 11570431601. The next prime is 11570431637. The reversal of 11570431616 is 61613407511.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 898181 + ... + 910971.

It is an arithmetic number, because the mean of its divisors is an integer number (371863440).

Almost surely, 2^11570431616 is an apocalyptic number.

11570431616 is a gapful number since it is divisible by the number (16) 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 11570431616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11899630080).

11570431616 is an abundant number, since it is smaller than the sum of its proper divisors (12228828544).

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

11570431616 is a wasteful number, since it uses less digits than its factorization.

11570431616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13033 (or 13021 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 11570431616 in words is "eleven billion, five hundred seventy million, four hundred thirty-one thousand, six hundred sixteen".