666455453022510 has 128 divisors (see below), whose sum is σ = 1794910396377600. Its totient is φ = 175958714292480.

The previous prime is 666455453022467. The next prime is 666455453022539. The reversal of 666455453022510 is 15220354554666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9750156 + ... + 37788575.

It is an arithmetic number, because the mean of its divisors is an integer number (14022737471700).

Almost surely, 2^{666455453022510} is an apocalyptic number.

666455453022510 is an abundant number, since it is smaller than the sum of its proper divisors (1128454943355090).

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

666455453022510 is a wasteful number, since it uses less digits than its factorization.

666455453022510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47539263 (or 47539257 counting only the distinct ones).

The product of its (nonzero) digits is 25920000, while the sum is 54.

The spelling of 666455453022510 in words is "six hundred sixty-six trillion, four hundred fifty-five billion, four hundred fifty-three million, twenty-two thousand, five hundred ten".