166640373754 has 8 divisors (see below), whose sum is σ = 249982295040. Its totient is φ = 83312942076.

The previous prime is 166640373673. The next prime is 166640373763. The reversal of 166640373754 is 457373046661.

166640373754 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3593604 + ... + 3639679.

It is an arithmetic number, because the mean of its divisors is an integer number (31247786880).

Almost surely, 2^166640373754 is an apocalyptic number.

166640373754 is a deficient number, since it is larger than the sum of its proper divisors (83341921286).

166640373754 is a wasteful number, since it uses less digits than its factorization.

166640373754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7244804.

The product of its (nonzero) digits is 7620480, while the sum is 52.

The spelling of 166640373754 in words is "one hundred sixty-six billion, six hundred forty million, three hundred seventy-three thousand, seven hundred fifty-four".