165232541925 has 120 divisors (see below), whose sum is σ = 351466299360. Its totient is φ = 75896092800.

The previous prime is 165232541921. The next prime is 165232541927. The reversal of 165232541925 is 529145232561.

165232541925 is a `hidden beast` number, since 1 + 6 + 52 + 32 + 541 + 9 + 25 = 666.

It is not a de Polignac number, because 165232541925 - 2² = 165232541921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165232541921) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 228019 + ... + 618431.

It is an arithmetic number, because the mean of its divisors is an integer number (2928885828).

Almost surely, 2^165232541925 is an apocalyptic number.

165232541925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165232541925 is an abundant number, since it is smaller than the sum of its proper divisors (186233757435).

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

165232541925 is a wasteful number, since it uses less digits than its factorization.

165232541925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390465 (or 390451 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The spelling of 165232541925 in words is "one hundred sixty-five billion, two hundred thirty-two million, five hundred forty-one thousand, nine hundred twenty-five".