166310908641 has 16 divisors (see below), whose sum is σ = 246443515200. Its totient is φ = 110848296384.

The previous prime is 166310908639. The next prime is 166310908657. The reversal of 166310908641 is 146809013661.

166310908641 is a `hidden beast` number, since 1 + 6 + 631 + 0 + 9 + 0 + 8 + 6 + 4 + 1 = 666.

166310908641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166310908641 - 2¹ = 166310908639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166310908601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593031 + ... + 827228.

It is an arithmetic number, because the mean of its divisors is an integer number (15402719700).

Almost surely, 2^166310908641 is an apocalyptic number.

It is an amenable number.

166310908641 is a deficient number, since it is larger than the sum of its proper divisors (80132606559).

166310908641 is a wasteful number, since it uses less digits than its factorization.

166310908641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424605 (or 1424599 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 166310908641 in words is "one hundred sixty-six billion, three hundred ten million, nine hundred eight thousand, six hundred forty-one".