166597740954 has 40 divisors (see below), whose sum is σ = 373569688800. Its totient is φ = 55492810344.

The previous prime is 166597740941. The next prime is 166597740973. The reversal of 166597740954 is 459047795661.

166597740954 is a `hidden beast` number, since 1 + 66 + 59 + 77 + 409 + 54 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 166597740891 and 166597740900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 140904 + ... + 594179.

It is an arithmetic number, because the mean of its divisors is an integer number (9339242220).

Almost surely, 2^166597740954 is an apocalyptic number.

166597740954 is an abundant number, since it is smaller than the sum of its proper divisors (206971947846).

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

166597740954 is a wasteful number, since it uses less digits than its factorization.

166597740954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736496 (or 736487 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 63.

The spelling of 166597740954 in words is "one hundred sixty-six billion, five hundred ninety-seven million, seven hundred forty thousand, nine hundred fifty-four".