55117166157164 has 24 divisors (see below), whose sum is σ = 104806835481600. Its totient is φ = 25265933551440.

The previous prime is 55117166157091. The next prime is 55117166157167. The reversal of 55117166157164 is 46175166171155.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55117166157167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11697189104 + ... + 11697193815.

It is an arithmetic number, because the mean of its divisors is an integer number (4366951478400).

Almost surely, 2^{55117166157164} is an apocalyptic number.

It is an amenable number.

55117166157164 is a deficient number, since it is larger than the sum of its proper divisors (49689669324436).

55117166157164 is a wasteful number, since it uses less digits than its factorization.

55117166157164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23394382973 (or 23394382971 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 56.

The spelling of 55117166157164 in words is "fifty-five trillion, one hundred seventeen billion, one hundred sixty-six million, one hundred fifty-seven thousand, one hundred sixty-four".