406444664355 has 32 divisors (see below), whose sum is σ = 677563066368. Its totient is φ = 207817324800.

The previous prime is 406444664347. The next prime is 406444664387. The reversal of 406444664355 is 553466444604.

It is not a de Polignac number, because 406444664355 - 2³ = 406444664347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 406444664298 and 406444664307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4034706 + ... + 4134215.

It is an arithmetic number, because the mean of its divisors is an integer number (21173845824).

Almost surely, 2^406444664355 is an apocalyptic number.

406444664355 is a deficient number, since it is larger than the sum of its proper divisors (271118402013).

406444664355 is a wasteful number, since it uses less digits than its factorization.

406444664355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8169067.

The product of its (nonzero) digits is 16588800, while the sum is 51.

The spelling of 406444664355 in words is "four hundred six billion, four hundred forty-four million, six hundred sixty-four thousand, three hundred fifty-five".