161525505364014 has 24 divisors (see below), whose sum is σ = 355089127496040. Its totient is φ = 48947122837360.

The previous prime is 161525505363953. The next prime is 161525505364019. The reversal of 161525505364014 is 410463505525161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161525505364019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111243460269 + ... + 111243461720.

It is an arithmetic number, because the mean of its divisors is an integer number (14795380312335).

Almost surely, 2^{161525505364014} is an apocalyptic number.

161525505364014 is an abundant number, since it is smaller than the sum of its proper divisors (193563622132026).

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

161525505364014 is a wasteful number, since it uses less digits than its factorization.

161525505364014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222486922016 (or 222486922005 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 161525505364014 in words is "one hundred sixty-one trillion, five hundred twenty-five billion, five hundred five million, three hundred sixty-four thousand, fourteen".