11620653156 has 288 divisors, whose sum is σ = 36162846720. Its totient is φ = 3073075200.

The previous prime is 11620653131. The next prime is 11620653197. The reversal of 11620653156 is 65135602611.

11620653156 is a `hidden beast` number, since 11 + 62 + 0 + 6 + 531 + 56 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11620653156.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 60841021 + ... + 60841211.

It is an arithmetic number, because the mean of its divisors is an integer number (125565440).

Almost surely, 2^11620653156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11620653156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18081423360).

11620653156 is an abundant number, since it is smaller than the sum of its proper divisors (24542193564).

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

11620653156 is a wasteful number, since it uses less digits than its factorization.

11620653156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 11620653156 in words is "eleven billion, six hundred twenty million, six hundred fifty-three thousand, one hundred fifty-six".