164700417389 has 2 divisors, whose sum is σ = 164700417390. Its totient is φ = 164700417388.

The previous prime is 164700417319. The next prime is 164700417397. The reversal of 164700417389 is 983714007461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131273608489 + 33426808900 = 362317^2 + 182830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164700417389 is a prime.

It is a super-2 number, since 2×164700417389² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164700417319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82350208694 + 82350208695.

It is an arithmetic number, because the mean of its divisors is an integer number (82350208695).

Almost surely, 2^164700417389 is an apocalyptic number.

It is an amenable number.

164700417389 is a deficient number, since it is larger than the sum of its proper divisors (1).

164700417389 is an equidigital number, since it uses as much as digits as its factorization.

164700417389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 164700417389 in words is "one hundred sixty-four billion, seven hundred million, four hundred seventeen thousand, three hundred eighty-nine".