189214661266 has 8 divisors (see below), whose sum is σ = 283824442044. Its totient is φ = 94606513920.

The previous prime is 189214661257. The next prime is 189214661371. The reversal of 189214661266 is 662166412981.

It can be written as a sum of positive squares in 2 ways, for example, as 183244781041 + 5969880225 = 428071^2 + 77265^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58975 + ... + 617986.

Almost surely, 2^189214661266 is an apocalyptic number.

189214661266 is a deficient number, since it is larger than the sum of its proper divisors (94609780778).

189214661266 is a wasteful number, since it uses less digits than its factorization.

189214661266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816716.

The product of its digits is 1492992, while the sum is 52.

The spelling of 189214661266 in words is "one hundred eighty-nine billion, two hundred fourteen million, six hundred sixty-one thousand, two hundred sixty-six".