161256416754 has 32 divisors (see below), whose sum is σ = 328078874880. Its totient is φ = 52825019600.

The previous prime is 161256416731. The next prime is 161256416771. The reversal of 161256416754 is 457614652161.

161256416754 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1125769 + ... + 1260899.

It is an arithmetic number, because the mean of its divisors is an integer number (10252464840).

Almost surely, 2^161256416754 is an apocalyptic number.

161256416754 is an abundant number, since it is smaller than the sum of its proper divisors (166822458126).

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

161256416754 is a wasteful number, since it uses less digits than its factorization.

161256416754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138566.

The product of its digits is 1209600, while the sum is 48.

The spelling of 161256416754 in words is "one hundred sixty-one billion, two hundred fifty-six million, four hundred sixteen thousand, seven hundred fifty-four".