165437332125 has 48 divisors (see below), whose sum is σ = 298092734784. Its totient is φ = 81446040000.

The previous prime is 165437332117. The next prime is 165437332153. The reversal of 165437332125 is 521233734561.

It is a happy number.

165437332125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165437332125 - 2³ = 165437332117 is a prime.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1241851 + ... + 1368600.

It is an arithmetic number, because the mean of its divisors is an integer number (6210265308).

Almost surely, 2^165437332125 is an apocalyptic number.

165437332125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165437332125 is a deficient number, since it is larger than the sum of its proper divisors (132655402659).

165437332125 is a wasteful number, since it uses less digits than its factorization.

165437332125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610495 (or 2610472 counting only the distinct ones).

The product of its digits is 453600, while the sum is 42.

The spelling of 165437332125 in words is "one hundred sixty-five billion, four hundred thirty-seven million, three hundred thirty-two thousand, one hundred twenty-five".