666455453022511 has 16 divisors (see below), whose sum is σ = 698473570656960. Its totient is φ = 634690857841920.

The previous prime is 666455453022467. The next prime is 666455453022539. The reversal of 666455453022511 is 115220354554666.

It is a cyclic number.

It is not a de Polignac number, because 666455453022511 - 2²⁵ = 666455419468079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666455453028511) 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, 916415811 + ... + 917142763.

It is an arithmetic number, because the mean of its divisors is an integer number (43654598166060).

Almost surely, 2^{666455453022511} is an apocalyptic number.

666455453022511 is a deficient number, since it is larger than the sum of its proper divisors (32018117634449).

666455453022511 is a wasteful number, since it uses less digits than its factorization.

666455453022511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901266.

The product of its (nonzero) digits is 25920000, while the sum is 55.

The spelling of 666455453022511 in words is "six hundred sixty-six trillion, four hundred fifty-five billion, four hundred fifty-three million, twenty-two thousand, five hundred eleven".