164917587735679 has 6 divisors (see below), whose sum is σ = 175189271401184. Its totient is φ = 155216553162720.

The previous prime is 164917587735647. The next prime is 164917587735683. The reversal of 164917587735679 is 976537785719461.

It is not a de Polignac number, because 164917587735679 - 2⁵ = 164917587735647 is a prime.

It is a super-3 number, since 3×164917587735679³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164917587735596 and 164917587735605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164917587735479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 285324545967 + ... + 285324546544.

Almost surely, 2^{164917587735679} is an apocalyptic number.

164917587735679 is a deficient number, since it is larger than the sum of its proper divisors (10271683665505).

164917587735679 is an equidigital number, since it uses as much as digits as its factorization.

164917587735679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570649092545 (or 570649092528 counting only the distinct ones).

The product of its digits is 16803158400, while the sum is 85.

The spelling of 164917587735679 in words is "one hundred sixty-four trillion, nine hundred seventeen billion, five hundred eighty-seven million, seven hundred thirty-five thousand, six hundred seventy-nine".