11215610156 has 12 divisors (see below), whose sum is σ = 20260457280. Its totient is φ = 5426908080.

The previous prime is 11215610117. The next prime is 11215610167. The reversal of 11215610156 is 65101651211.

It is a super-2 number, since 2×11215610156² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45224111 + ... + 45224358.

It is an arithmetic number, because the mean of its divisors is an integer number (1688371440).

Almost surely, 2^11215610156 is an apocalyptic number.

It is an amenable number.

11215610156 is a deficient number, since it is larger than the sum of its proper divisors (9044847124).

11215610156 is a wasteful number, since it uses less digits than its factorization.

11215610156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90448504 (or 90448502 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 29.

The spelling of 11215610156 in words is "eleven billion, two hundred fifteen million, six hundred ten thousand, one hundred fifty-six".