166874592617 has 8 divisors (see below), whose sum is σ = 167543384712. Its totient is φ = 166205952000.

The previous prime is 166874592611. The next prime is 166874592623. The reversal of 166874592617 is 716295478661.

It is an interprime number because it is at equal distance from previous prime (166874592611) and next prime (166874592623).

It can be written as a sum of positive squares in 4 ways, for example, as 69662212096 + 97212380521 = 263936^2 + 311789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166874592617 - 2⁴ = 166874592601 is a prime.

It is a super-3 number, since 3×166874592617³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166874592617.

It is not an unprimeable number, because it can be changed into a prime (166874592611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2511767 + ... + 2577347.

It is an arithmetic number, because the mean of its divisors is an integer number (20942923089).

Almost surely, 2^166874592617 is an apocalyptic number.

It is an amenable number.

166874592617 is a deficient number, since it is larger than the sum of its proper divisors (668792095).

166874592617 is an equidigital number, since it uses as much as digits as its factorization.

166874592617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75739.

The product of its digits is 30481920, while the sum is 62.

The spelling of 166874592617 in words is "one hundred sixty-six billion, eight hundred seventy-four million, five hundred ninety-two thousand, six hundred seventeen".