11550506665157 has 16 divisors (see below), whose sum is σ = 11762642707200. Its totient is φ = 11339773562880.

The previous prime is 11550506665153. The next prime is 11550506665273. The reversal of 11550506665157 is 75156660505511.

It is a cyclic number.

It is not a de Polignac number, because 11550506665157 - 2² = 11550506665153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11550506665099 and 11550506665108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11550506665153) 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, 56079719 + ... + 56285307.

It is an arithmetic number, because the mean of its divisors is an integer number (735165169200).

Almost surely, 2^{11550506665157} is an apocalyptic number.

It is an amenable number.

11550506665157 is a deficient number, since it is larger than the sum of its proper divisors (212136042043).

11550506665157 is a wasteful number, since it uses less digits than its factorization.

11550506665157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208996.

The product of its (nonzero) digits is 4725000, while the sum is 53.

The spelling of 11550506665157 in words is "eleven trillion, five hundred fifty billion, five hundred six million, six hundred sixty-five thousand, one hundred fifty-seven".