161259255416 has 16 divisors (see below), whose sum is σ = 345555547440. Its totient is φ = 69111109440.

The previous prime is 161259255373. The next prime is 161259255419. The reversal of 161259255416 is 614552952161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161259255419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1439814725 + ... + 1439814836.

It is an arithmetic number, because the mean of its divisors is an integer number (21597221715).

Almost surely, 2^161259255416 is an apocalyptic number.

It is an amenable number.

161259255416 is an abundant number, since it is smaller than the sum of its proper divisors (184296292024).

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

161259255416 is a wasteful number, since it uses less digits than its factorization.

161259255416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879629574 (or 2879629570 counting only the distinct ones).

The product of its digits is 648000, while the sum is 47.

The spelling of 161259255416 in words is "one hundred sixty-one billion, two hundred fifty-nine million, two hundred fifty-five thousand, four hundred sixteen".