20165072325 has 48 divisors (see below), whose sum is σ = 36835606656. Its totient is φ = 9681971200.

The previous prime is 20165072297. The next prime is 20165072327. The reversal of 20165072325 is 52327056102.

It is not a de Polignac number, because 20165072325 - 2⁷ = 20165072197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20165072327) by changing a digit.

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, 314496 + ... + 373145.

It is an arithmetic number, because the mean of its divisors is an integer number (767408472).

Almost surely, 2^20165072325 is an apocalyptic number.

20165072325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20165072325 is a deficient number, since it is larger than the sum of its proper divisors (16670534331).

20165072325 is a wasteful number, since it uses less digits than its factorization.

20165072325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687694 (or 687689 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 20165072325 in words is "twenty billion, one hundred sixty-five million, seventy-two thousand, three hundred twenty-five".