164747375317 has 12 divisors (see below), whose sum is σ = 191683573356. Its totient is φ = 141183544320.

The previous prime is 164747375297. The next prime is 164747375339. The reversal of 164747375317 is 713573747461.

It can be written as a sum of positive squares in 2 ways, for example, as 21132146161 + 143615229156 = 145369^2 + 378966^2 .

It is a de Polignac number, because none of the positive numbers 2^k-164747375317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164747375357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92034 + ... + 581347.

It is an arithmetic number, because the mean of its divisors is an integer number (15973631113).

Almost surely, 2^164747375317 is an apocalyptic number.

It is an amenable number.

164747375317 is a deficient number, since it is larger than the sum of its proper divisors (26936198039).

164747375317 is an equidigital number, since it uses as much as digits as its factorization.

164747375317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678388 (or 678381 counting only the distinct ones).

The product of its digits is 10372320, while the sum is 55.

The spelling of 164747375317 in words is "one hundred sixty-four billion, seven hundred forty-seven million, three hundred seventy-five thousand, three hundred seventeen".