190666857163 has 16 divisors (see below), whose sum is σ = 198236499552. Its totient is φ = 183268800000.

The previous prime is 190666857133. The next prime is 190666857181. The reversal of 190666857163 is 361758666091.

It is a cyclic number.

It is not a de Polignac number, because 190666857163 - 2²⁹ = 190129986251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190666857098 and 190666857107.

It is not an unprimeable number, because it can be changed into a prime (190666857103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694003 + ... + 928963.

It is an arithmetic number, because the mean of its divisors is an integer number (12389781222).

Almost surely, 2^190666857163 is an apocalyptic number.

190666857163 is a deficient number, since it is larger than the sum of its proper divisors (7569642389).

190666857163 is a wasteful number, since it uses less digits than its factorization.

190666857163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235326.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 190666857163 in words is "one hundred ninety billion, six hundred sixty-six million, eight hundred fifty-seven thousand, one hundred sixty-three".