405434455664 has 40 divisors (see below), whose sum is σ = 898909296480. Its totient is φ = 173532803328.

The previous prime is 405434455663. The next prime is 405434455733. The reversal of 405434455664 is 466554434504.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405434455663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2254919 + ... + 2428070.

It is an arithmetic number, because the mean of its divisors is an integer number (22472732412).

Almost surely, 2^405434455664 is an apocalyptic number.

It is an amenable number.

405434455664 is an abundant number, since it is smaller than the sum of its proper divisors (493474840816).

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

405434455664 is a wasteful number, since it uses less digits than its factorization.

405434455664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4683777 (or 4683771 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 50.

The spelling of 405434455664 in words is "four hundred five billion, four hundred thirty-four million, four hundred fifty-five thousand, six hundred sixty-four".