166618146034727 has 4 divisors (see below), whose sum is σ = 166635846898920. Its totient is φ = 166600445170536.

The previous prime is 166618146034709. The next prime is 166618146034751. The reversal of 166618146034727 is 727430641816661.

166618146034727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166618146034727 - 2⁶ = 166618146034663 is a prime.

It is a super-2 number, since 2×166618146034727² (a number of 29 digits) contains 22 as substring.

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 166618146034727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166618146094727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8850417977 + ... + 8850436802.

It is an arithmetic number, because the mean of its divisors is an integer number (41658961724730).

Almost surely, 2^{166618146034727} is an apocalyptic number.

166618146034727 is a deficient number, since it is larger than the sum of its proper divisors (17700864193).

166618146034727 is an equidigital number, since it uses as much as digits as its factorization.

166618146034727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17700864192.

The product of its (nonzero) digits is 48771072, while the sum is 62.

The spelling of 166618146034727 in words is "one hundred sixty-six trillion, six hundred eighteen billion, one hundred forty-six million, thirty-four thousand, seven hundred twenty-seven".