161014752256 has 88 divisors (see below), whose sum is σ = 325282383360. Its totient is φ = 79657009152.

The previous prime is 161014752253. The next prime is 161014752383. The reversal of 161014752256 is 652257410161.

It is a super-2 number, since 2×161014752256² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161014752253) 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, 111892785 + ... + 111894223.

It is an arithmetic number, because the mean of its divisors is an integer number (3696390720).

Almost surely, 2^161014752256 is an apocalyptic number.

161014752256 is a gapful number since it is divisible by the number (16) 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 161014752256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162641191680).

161014752256 is an abundant number, since it is smaller than the sum of its proper divisors (164267631104).

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

161014752256 is a wasteful number, since it uses less digits than its factorization.

161014752256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539 (or 2521 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 161014752256 in words is "one hundred sixty-one billion, fourteen million, seven hundred fifty-two thousand, two hundred fifty-six".