188091534066 has 16 divisors (see below), whose sum is σ = 376187493024. Its totient is φ = 62696440544.

The previous prime is 188091534053. The next prime is 188091534109. The reversal of 188091534066 is 660435190881.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679825 + ... + 915611.

It is an arithmetic number, because the mean of its divisors is an integer number (23511718314).

Almost surely, 2^188091534066 is an apocalyptic number.

188091534066 is an abundant number, since it is smaller than the sum of its proper divisors (188095958958).

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

188091534066 is a wasteful number, since it uses less digits than its factorization.

188091534066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368745.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 188091534066 in words is "one hundred eighty-eight billion, ninety-one million, five hundred thirty-four thousand, sixty-six".