406635655344 has 80 divisors (see below), whose sum is σ = 1114837833312. Its totient is φ = 127277236224.

The previous prime is 406635655337. The next prime is 406635655367. The reversal of 406635655344 is 443556536604.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222109 + ... + 928764.

Almost surely, 2^406635655344 is an apocalyptic number.

It is an amenable number.

406635655344 is an abundant number, since it is smaller than the sum of its proper divisors (708202177968).

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

406635655344 is a wasteful number, since it uses less digits than its factorization.

406635655344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151334 (or 1151328 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 51.

The spelling of 406635655344 in words is "four hundred six billion, six hundred thirty-five million, six hundred fifty-five thousand, three hundred forty-four".