161134592544 has 96 divisors (see below), whose sum is σ = 470557442880. Its totient is φ = 53645068800.

The previous prime is 161134592537. The next prime is 161134592609. The reversal of 161134592544 is 445295431161.

161134592544 is a `hidden beast` number, since 1 + 6 + 1 + 1 + 3 + 4 + 592 + 54 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 161134592544.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585724 + ... + 815684.

It is an arithmetic number, because the mean of its divisors is an integer number (4901640030).

Almost surely, 2^161134592544 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 161134592544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235278721440).

161134592544 is an abundant number, since it is smaller than the sum of its proper divisors (309422850336).

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

161134592544 is a wasteful number, since it uses less digits than its factorization.

161134592544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230791 (or 230777 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 161134592544 in words is "one hundred sixty-one billion, one hundred thirty-four million, five hundred ninety-two thousand, five hundred forty-four".