1912302666 has 24 divisors (see below), whose sum is σ = 4144516740. Its totient is φ = 637250496.

The previous prime is 1912302643. The next prime is 1912302697. The reversal of 1912302666 is 6662032191.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1712221641 + 200081025 = 41379^2 + 14145^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1912302666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58486 + ... + 85118.

Almost surely, 2^1912302666 is an apocalyptic number.

1912302666 is an abundant number, since it is smaller than the sum of its proper divisors (2232214074).

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

1912302666 is a wasteful number, since it uses less digits than its factorization.

1912302666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30630 (or 30627 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 1912302666 is about 43729.8829863516. The cubic root of 1912302666 is about 1241.2298468508.

The spelling of 1912302666 in words is "one billion, nine hundred twelve million, three hundred two thousand, six hundred sixty-six".