406554535023 has 192 divisors, whose sum is σ = 706374789120. Its totient is φ = 206057779200.

The previous prime is 406554535019. The next prime is 406554535027. The reversal of 406554535023 is 320535455604.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (406554535019) and next prime (406554535027).

It is not a de Polignac number, because 406554535023 - 2² = 406554535019 is a prime.

It is a super-2 number, since 2×406554535023² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406554535027) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1206393111 + ... + 1206393447.

It is an arithmetic number, because the mean of its divisors is an integer number (3679035360).

Almost surely, 2^406554535023 is an apocalyptic number.

406554535023 is a deficient number, since it is larger than the sum of its proper divisors (299820254097).

406554535023 is a wasteful number, since it uses less digits than its factorization.

406554535023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 42.

The spelling of 406554535023 in words is "four hundred six billion, five hundred fifty-four million, five hundred thirty-five thousand, twenty-three".