166200651604 has 48 divisors (see below), whose sum is σ = 329801375680. Its totient is φ = 72650545920.

The previous prime is 166200651581. The next prime is 166200651607. The reversal of 166200651604 is 406156002661.

166200651604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166200651607) 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, 3862432 + ... + 3905224.

Almost surely, 2^166200651604 is an apocalyptic number.

It is an amenable number.

166200651604 is a deficient number, since it is larger than the sum of its proper divisors (163600724076).

166200651604 is a wasteful number, since it uses less digits than its factorization.

166200651604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46760 (or 46758 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 166200651604 in words is "one hundred sixty-six billion, two hundred million, six hundred fifty-one thousand, six hundred four".