55168071156 has 144 divisors (see below), whose sum is σ = 155740935168. Its totient is φ = 16322529600.

The previous prime is 55168071121. The next prime is 55168071181. The reversal of 55168071156 is 65117086155.

It is a happy number.

55168071156 is a `hidden beast` number, since 5 + 516 + 80 + 7 + 1 + 1 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8241771 + ... + 8248461.

It is an arithmetic number, because the mean of its divisors is an integer number (1081534272).

Almost surely, 2^55168071156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55168071156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77870467584).

55168071156 is an abundant number, since it is smaller than the sum of its proper divisors (100572864012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55168071156 is a wasteful number, since it uses less digits than its factorization.

55168071156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7202 (or 7197 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 45.

The spelling of 55168071156 in words is "fifty-five billion, one hundred sixty-eight million, seventy-one thousand, one hundred fifty-six".