666242374 has 32 divisors (see below), whose sum is σ = 1177598016. Its totient is φ = 276756480.

The previous prime is 666242327. The next prime is 666242399. The reversal of 666242374 is 473242666.

666242374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86422 + ... + 93814.

It is an arithmetic number, because the mean of its divisors is an integer number (36799938).

Almost surely, 2^666242374 is an apocalyptic number.

666242374 is a deficient number, since it is larger than the sum of its proper divisors (511355642).

666242374 is a wasteful number, since it uses less digits than its factorization.

666242374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7600.

The product of its digits is 290304, while the sum is 40.

The square root of 666242374 is about 25811.6712748322. The cubic root of 666242374 is about 873.3950985135.

The spelling of 666242374 in words is "six hundred sixty-six million, two hundred forty-two thousand, three hundred seventy-four".