55105160161000 has 128 divisors (see below), whose sum is σ = 132635846304000. Its totient is φ = 21413175955200.

The previous prime is 55105160160991. The next prime is 55105160161049. The reversal of 55105160161000 is 16106150155.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22788051 + ... + 25089949.

It is an arithmetic number, because the mean of its divisors is an integer number (1036217549250).

Almost surely, 2^{55105160161000} is an apocalyptic number.

55105160161000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55105160161000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66317923152000).

55105160161000 is an abundant number, since it is smaller than the sum of its proper divisors (77530686143000).

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

55105160161000 is a wasteful number, since it uses less digits than its factorization.

55105160161000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302604 (or 2302590 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 55105160161000 in words is "fifty-five trillion, one hundred five billion, one hundred sixty million, one hundred sixty-one thousand".