666312350 has 24 divisors (see below), whose sum is σ = 1352009448. Its totient is φ = 242295200.

The previous prime is 666312347. The next prime is 666312379. The reversal of 666312350 is 53213666.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 605189 + ... + 606288.

It is an arithmetic number, because the mean of its divisors is an integer number (56333727).

Almost surely, 2^666312350 is an apocalyptic number.

666312350 is an abundant number, since it is smaller than the sum of its proper divisors (685697098).

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

666312350 is a wasteful number, since it uses less digits than its factorization.

666312350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211500 (or 1211495 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 666312350 is about 25813.0267500733. The cubic root of 666312350 is about 873.4256752516.

The spelling of 666312350 in words is "six hundred sixty-six million, three hundred twelve thousand, three hundred fifty".