166794635754 has 56 divisors (see below), whose sum is σ = 397182056580. Its totient is φ = 52327721088.

The previous prime is 166794635729. The next prime is 166794635767. The reversal of 166794635754 is 457536497661.

It is a happy number.

166794635754 is a `hidden beast` number, since 1 + 6 + 6 + 79 + 463 + 57 + 54 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 160869177225 + 5925458529 = 401085^2 + 76977^2 .

It is a junction number, because it is equal to n+sod(n) for n = 166794635691 and 166794635700.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3339909 + ... + 3389480.

Almost surely, 2^166794635754 is an apocalyptic number.

166794635754 is an abundant number, since it is smaller than the sum of its proper divisors (230387420826).

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

166794635754 is an equidigital number, since it uses as much as digits as its factorization.

166794635754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6729426 (or 6729411 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 63.

The spelling of 166794635754 in words is "one hundred sixty-six billion, seven hundred ninety-four million, six hundred thirty-five thousand, seven hundred fifty-four".