190666857192 has 64 divisors (see below), whose sum is σ = 544796659200. Its totient is φ = 54472824000.

The previous prime is 190666857181. The next prime is 190666857197. The reversal of 190666857192 is 291758666091.

It is not an unprimeable number, because it can be changed into a prime (190666857197) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4011567 + ... + 4058817.

It is an arithmetic number, because the mean of its divisors is an integer number (8512447800).

Almost surely, 2^190666857192 is an apocalyptic number.

190666857192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

190666857192 is an abundant number, since it is smaller than the sum of its proper divisors (354129802008).

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

190666857192 is a wasteful number, since it uses less digits than its factorization.

190666857192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71286 (or 71282 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 60.

The spelling of 190666857192 in words is "one hundred ninety billion, six hundred sixty-six million, eight hundred fifty-seven thousand, one hundred ninety-two".