11551516622523 has 12 divisors (see below), whose sum is σ = 16685708185120. Its totient is φ = 7700926077936.

The previous prime is 11551516622497. The next prime is 11551516622543. The reversal of 11551516622523 is 32522661515511.

11551516622523 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 1 + 5 + 16 + 622 + 5 + 2 + 3 = 666.

11551516622523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11551516622523 - 2²⁰ = 11551515573947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11551516622543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6217408 + ... + 7858701.

Almost surely, 2^{11551516622523} is an apocalyptic number.

11551516622523 is a deficient number, since it is larger than the sum of its proper divisors (5134191562597).

11551516622523 is a wasteful number, since it uses less digits than its factorization.

11551516622523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14167298 (or 14167295 counting only the distinct ones).

The product of its digits is 540000, while the sum is 45.

The spelling of 11551516622523 in words is "eleven trillion, five hundred fifty-one billion, five hundred sixteen million, six hundred twenty-two thousand, five hundred twenty-three".