161206525392 has 120 divisors (see below), whose sum is σ = 479479356000. Its totient is φ = 46279330560.

The previous prime is 161206525369. The next prime is 161206525399. The reversal of 161206525392 is 293525602161.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161206525399) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232267 + ... + 613482.

It is an arithmetic number, because the mean of its divisors is an integer number (3995661300).

Almost surely, 2^161206525392 is an apocalyptic number.

161206525392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161206525392 is an abundant number, since it is smaller than the sum of its proper divisors (318272830608).

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

161206525392 is a wasteful number, since it uses less digits than its factorization.

161206525392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845809 (or 845784 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 161206525392 in words is "one hundred sixty-one billion, two hundred six million, five hundred twenty-five thousand, three hundred ninety-two".