166558002182417 has 8 divisors (see below), whose sum is σ = 170721787295136. Its totient is φ = 162407414488032.

The previous prime is 166558002182413. The next prime is 166558002182443. The reversal of 166558002182417 is 714281200855661.

It is a happy number.

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 166558002182417 - 2² = 166558002182413 is a prime.

It is a super-2 number, since 2×166558002182417² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166558002182413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3299329028 + ... + 3299379509.

It is an arithmetic number, because the mean of its divisors is an integer number (21340223411892).

Almost surely, 2^{166558002182417} is an apocalyptic number.

It is an amenable number.

166558002182417 is a deficient number, since it is larger than the sum of its proper divisors (4163785112719).

166558002182417 is an equidigital number, since it uses as much as digits as its factorization.

166558002182417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6598709167.

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 166558002182417 in words is "one hundred sixty-six trillion, five hundred fifty-eight billion, two million, one hundred eighty-two thousand, four hundred seventeen".