161412974944 has 96 divisors (see below), whose sum is σ = 344212848000. Its totient is φ = 74067001344.

The previous prime is 161412974897. The next prime is 161412974951. The reversal of 161412974944 is 449479214161.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 161412974891 and 161412974900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100318012 + ... + 100319620.

It is an arithmetic number, because the mean of its divisors is an integer number (3585550500).

Almost surely, 2^161412974944 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 161412974944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172106424000).

161412974944 is an abundant number, since it is smaller than the sum of its proper divisors (182799873056).

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

161412974944 is a wasteful number, since it uses less digits than its factorization.

161412974944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880 (or 2872 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

It can be divided in two parts, 161412 and 974944, that added together give a square (1136356 = 1066²).

The spelling of 161412974944 in words is "one hundred sixty-one billion, four hundred twelve million, nine hundred seventy-four thousand, nine hundred forty-four".