406366222663604 has 144 divisors (see below), whose sum is σ = 865749689586432. Its totient is φ = 163420197997056.

The previous prime is 406366222663603. The next prime is 406366222663607.

406366222663604 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 406366222663604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406366222663603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6800736992 + ... + 6800796744.

It is an arithmetic number, because the mean of its divisors is an integer number (6012150622128).

Almost surely, 2^{406366222663604} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406366222663604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432874844793216).

406366222663604 is an abundant number, since it is smaller than the sum of its proper divisors (459383466922828).

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

406366222663604 is a wasteful number, since it uses less digits than its factorization.

406366222663604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68526 (or 68501 counting only the distinct ones).

The product of its (nonzero) digits is 53747712, while the sum is 56.

The spelling of 406366222663604 in words is "four hundred six trillion, three hundred sixty-six billion, two hundred twenty-two million, six hundred sixty-three thousand, six hundred four".