400901664222 has 40 divisors (see below), whose sum is σ = 929293140600. Its totient is φ = 129025821456.

The previous prime is 400901664143. The next prime is 400901664287. The reversal of 400901664222 is 222466109004.

400901664222 is a `hidden beast` number, since 4 + 0 + 0 + 9 + 0 + 1 + 6 + 642 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42662572 + ... + 42671967.

It is an arithmetic number, because the mean of its divisors is an integer number (23232328515).

Almost surely, 2^400901664222 is an apocalyptic number.

400901664222 is an abundant number, since it is smaller than the sum of its proper divisors (528391476378).

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

400901664222 is a wasteful number, since it uses less digits than its factorization.

400901664222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85334582 (or 85334573 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 400901664222 in words is "four hundred billion, nine hundred one million, six hundred sixty-four thousand, two hundred twenty-two".