633123145212666 has 32 divisors (see below), whose sum is σ = 1291552145366208. Its totient is φ = 206847856016640.

The previous prime is 633123145212643. The next prime is 633123145212667. The reversal of 633123145212666 is 666212541321336.

It is not an unprimeable number, because it can be changed into a prime (633123145212667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3056159071 + ... + 3056366226.

It is an arithmetic number, because the mean of its divisors is an integer number (40361004542694).

Almost surely, 2^{633123145212666} is an apocalyptic number.

633123145212666 is an abundant number, since it is smaller than the sum of its proper divisors (658429000153542).

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

633123145212666 is a wasteful number, since it uses less digits than its factorization.

633123145212666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6112525646.

The product of its digits is 5598720, while the sum is 51.

The spelling of 633123145212666 in words is "six hundred thirty-three trillion, one hundred twenty-three billion, one hundred forty-five million, two hundred twelve thousand, six hundred sixty-six".