180520342875516 has 24 divisors (see below), whose sum is σ = 481387581001600. Its totient is φ = 51577240821552.

The previous prime is 180520342875497. The next prime is 180520342875557. The reversal of 180520342875516 is 615578243025081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1074525850366 + ... + 1074525850533.

Almost surely, 2^{180520342875516} is an apocalyptic number.

It is an amenable number.

180520342875516 is an abundant number, since it is smaller than the sum of its proper divisors (300867238126084).

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

180520342875516 is a wasteful number, since it uses less digits than its factorization.

180520342875516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149051700913 (or 2149051700911 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 57.

The spelling of 180520342875516 in words is "one hundred eighty trillion, five hundred twenty billion, three hundred forty-two million, eight hundred seventy-five thousand, five hundred sixteen".