11611153953 has 32 divisors (see below), whose sum is σ = 19809208320. Its totient is φ = 6584282640.

The previous prime is 11611153949. The next prime is 11611153979. The reversal of 11611153953 is 35935111611.

It is a happy number.

11611153953 is a `hidden beast` number, since 1 + 1 + 6 + 111 + 539 + 5 + 3 = 666.

It is not a de Polignac number, because 11611153953 - 2² = 11611153949 is a prime.

It is a super-2 number, since 2×11611153953² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11611153903) 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, 209725 + ... + 259242.

It is an arithmetic number, because the mean of its divisors is an integer number (619037760).

Almost surely, 2^11611153953 is an apocalyptic number.

It is an amenable number.

11611153953 is a deficient number, since it is larger than the sum of its proper divisors (8198054367).

11611153953 is a wasteful number, since it uses less digits than its factorization.

11611153953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469114 (or 469108 counting only the distinct ones).

The product of its digits is 12150, while the sum is 36.

The spelling of 11611153953 in words is "eleven billion, six hundred eleven million, one hundred fifty-three thousand, nine hundred fifty-three".