166627057018855 has 16 divisors (see below), whose sum is σ = 201227096502144. Its totient is φ = 132451902385920.

The previous prime is 166627057018847. The next prime is 166627057018867. The reversal of 166627057018855 is 558810750726661.

It is not a de Polignac number, because 166627057018855 - 2³ = 166627057018847 is a prime.

It is a super-2 number, since 2×166627057018855² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194598994 + ... + 195453376.

It is an arithmetic number, because the mean of its divisors is an integer number (12576693531384).

Almost surely, 2^{166627057018855} is an apocalyptic number.

166627057018855 is a deficient number, since it is larger than the sum of its proper divisors (34600039483289).

166627057018855 is a wasteful number, since it uses less digits than its factorization.

166627057018855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102986.

The product of its (nonzero) digits is 169344000, while the sum is 67.

The spelling of 166627057018855 in words is "one hundred sixty-six trillion, six hundred twenty-seven billion, fifty-seven million, eighteen thousand, eight hundred fifty-five".