190666857164 has 12 divisors (see below), whose sum is σ = 381333714384. Its totient is φ = 81714367344.

The previous prime is 190666857133. The next prime is 190666857181. The reversal of 190666857164 is 461758666091.

190666857164 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3404765279 + ... + 3404765334.

It is an arithmetic number, because the mean of its divisors is an integer number (31777809532).

Almost surely, 2^190666857164 is an apocalyptic number.

190666857164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

190666857164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

190666857164 is a wasteful number, since it uses less digits than its factorization.

190666857164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6809530624 (or 6809530622 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 59.

The spelling of 190666857164 in words is "one hundred ninety billion, six hundred sixty-six million, eight hundred fifty-seven thousand, one hundred sixty-four".