11612153231571 has 16 divisors (see below), whose sum is σ = 15486249911040. Its totient is φ = 7739746241760.

The previous prime is 11612153231531. The next prime is 11612153231699. The reversal of 11612153231571 is 17513235121611.

It is a happy number.

11612153231571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-11612153231571 is a prime.

It is a super-2 number, since 2×11612153231571² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11612153231531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342211476 + ... + 342245406.

It is an arithmetic number, because the mean of its divisors is an integer number (967890619440).

Almost surely, 2^{11612153231571} is an apocalyptic number.

11612153231571 is a deficient number, since it is larger than the sum of its proper divisors (3874096679469).

11612153231571 is a wasteful number, since it uses less digits than its factorization.

11612153231571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55466.

The product of its digits is 37800, while the sum is 39.

The spelling of 11612153231571 in words is "eleven trillion, six hundred twelve billion, one hundred fifty-three million, two hundred thirty-one thousand, five hundred seventy-one".