164745185265 has 24 divisors (see below), whose sum is σ = 294769882368. Its totient is φ = 85029772320.

The previous prime is 164745185263. The next prime is 164745185393. The reversal of 164745185265 is 562581547461.

164745185265 is a `hidden beast` number, since 1 + 6 + 4 + 74 + 518 + 52 + 6 + 5 = 666.

164745185265 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 164745185265 - 2¹ = 164745185263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164745185263) 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 23 ways as a sum of consecutive naturals, for example, 59047059 + ... + 59049848.

It is an arithmetic number, because the mean of its divisors is an integer number (12282078432).

Almost surely, 2^164745185265 is an apocalyptic number.

164745185265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164745185265 is a deficient number, since it is larger than the sum of its proper divisors (130024697103).

164745185265 is a wasteful number, since it uses less digits than its factorization.

164745185265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118096949 (or 118096946 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The spelling of 164745185265 in words is "one hundred sixty-four billion, seven hundred forty-five million, one hundred eighty-five thousand, two hundred sixty-five".