166358259136 has 56 divisors (see below), whose sum is σ = 346352693120. Its totient is φ = 79176268800.

The previous prime is 166358259127. The next prime is 166358259143. The reversal of 166358259136 is 631952853661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566271 + ... + 808318.

It is an arithmetic number, because the mean of its divisors is an integer number (6184869520).

Almost surely, 2^166358259136 is an apocalyptic number.

166358259136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166358259136 is an abundant number, since it is smaller than the sum of its proper divisors (179994433984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166358259136 is a wasteful number, since it uses less digits than its factorization.

166358259136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374693 (or 1374683 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 55.

The spelling of 166358259136 in words is "one hundred sixty-six billion, three hundred fifty-eight million, two hundred fifty-nine thousand, one hundred thirty-six".