11612570940 has 96 divisors (see below), whose sum is σ = 36358378560. Its totient is φ = 3076939008.

The previous prime is 11612570929. The next prime is 11612570941. The reversal of 11612570940 is 4907521611.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11612570895 and 11612570904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11612570941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16294 + ... + 153266.

It is an arithmetic number, because the mean of its divisors is an integer number (378733110).

Almost surely, 2^11612570940 is an apocalyptic number.

11612570940 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 11612570940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18179189280).

11612570940 is an abundant number, since it is smaller than the sum of its proper divisors (24745807620).

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

11612570940 is a wasteful number, since it uses less digits than its factorization.

11612570940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137148 (or 137140 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 11612570940 in words is "eleven billion, six hundred twelve million, five hundred seventy thousand, nine hundred forty".