406625223663 has 32 divisors (see below), whose sum is σ = 612129907200. Its totient is φ = 266718184128.

The previous prime is 406625223647. The next prime is 406625223679. The reversal of 406625223663 is 366322526604.

406625223663 is a `hidden beast` number, since 4 + 0 + 6 + 62 + 522 + 3 + 6 + 63 = 666.

It is an interprime number because it is at equal distance from previous prime (406625223647) and next prime (406625223679).

It is not a de Polignac number, because 406625223663 - 2⁴ = 406625223647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406625223863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1383795 + ... + 1651707.

It is an arithmetic number, because the mean of its divisors is an integer number (19129059600).

Almost surely, 2^406625223663 is an apocalyptic number.

406625223663 is a deficient number, since it is larger than the sum of its proper divisors (205504683537).

406625223663 is a wasteful number, since it uses less digits than its factorization.

406625223663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268828 (or 268822 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 45.

The spelling of 406625223663 in words is "four hundred six billion, six hundred twenty-five million, two hundred twenty-three thousand, six hundred sixty-three".