189656766016 has 21 divisors (see below), whose sum is σ = 376357058689. Its totient is φ = 94826641024.

The previous prime is 189656765999. The next prime is 189656766029. The reversal of 189656766016 is 610667656981.

The square root of 189656766016 is 435496.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 21963240000 + 167693526016 = 148200^2 + 409504^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3456750 + ... + 3511186.

Almost surely, 2^189656766016 is an apocalyptic number.

189656766016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

189656766016 is the 435496-th square number.

It is an amenable number.

189656766016 is a deficient number, since it is larger than the sum of its proper divisors (186700292673).

189656766016 is an frugal number, since it uses more digits than its factorization.

189656766016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108886 (or 54439 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 189656766016 in words is "one hundred eighty-nine billion, six hundred fifty-six million, seven hundred sixty-six thousand, sixteen".