666235046224455 has 16 divisors (see below), whose sum is σ = 1068995836216800. Its totient is φ = 354318770567168.

The previous prime is 666235046224409. The next prime is 666235046224493. The reversal of 666235046224455 is 554422640532666.

It is a cyclic number.

It is not a de Polignac number, because 666235046224455 - 2³⁸ = 665960168317511 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62911708230 + ... + 62911718819.

It is an arithmetic number, because the mean of its divisors is an integer number (66812239763550).

Almost surely, 2^{666235046224455} is an apocalyptic number.

666235046224455 is a deficient number, since it is larger than the sum of its proper divisors (402760789992345).

666235046224455 is a wasteful number, since it uses less digits than its factorization.

666235046224455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125823427410.

The product of its (nonzero) digits is 248832000, while the sum is 60.

The spelling of 666235046224455 in words is "six hundred sixty-six trillion, two hundred thirty-five billion, forty-six million, two hundred twenty-four thousand, four hundred fifty-five".