11523656521151 has 16 divisors (see below), whose sum is σ = 12598657044480. Its totient is φ = 10492979207040.

The previous prime is 11523656521129. The next prime is 11523656521187. The reversal of 11523656521151 is 15112565632511.

It is a cyclic number.

It is not a de Polignac number, because 11523656521151 - 2⁶ = 11523656521087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11523656521051) 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, 1196411 + ... + 4947596.

It is an arithmetic number, because the mean of its divisors is an integer number (787416065280).

Almost surely, 2^{11523656521151} is an apocalyptic number.

11523656521151 is a deficient number, since it is larger than the sum of its proper divisors (1075000523329).

11523656521151 is a wasteful number, since it uses less digits than its factorization.

11523656521151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6147614.

The product of its digits is 270000, while the sum is 44.

The spelling of 11523656521151 in words is "eleven trillion, five hundred twenty-three billion, six hundred fifty-six million, five hundred twenty-one thousand, one hundred fifty-one".