666849230356 has 24 divisors (see below), whose sum is σ = 1186320570624. Its totient is φ = 327902371680.

The previous prime is 666849230353. The next prime is 666849230371. The reversal of 666849230356 is 653032948666.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 666849230356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666849230353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1208841 + ... + 1671823.

It is an arithmetic number, because the mean of its divisors is an integer number (49430023776).

Almost surely, 2^666849230356 is an apocalyptic number.

It is an amenable number.

666849230356 is a deficient number, since it is larger than the sum of its proper divisors (519471340268).

666849230356 is a wasteful number, since it uses less digits than its factorization.

666849230356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468951 (or 468949 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 58.

The spelling of 666849230356 in words is "six hundred sixty-six billion, eight hundred forty-nine million, two hundred thirty thousand, three hundred fifty-six".