400620206064 has 80 divisors (see below), whose sum is σ = 1114639248800. Its totient is φ = 123257438208.

The previous prime is 400620206047. The next prime is 400620206111. The reversal of 400620206064 is 460602026004.

It is a congruent number.

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, 11169792 + ... + 11205600.

It is an arithmetic number, because the mean of its divisors is an integer number (13932990610).

Almost surely, 2^400620206064 is an apocalyptic number.

It is an amenable number.

400620206064 is an abundant number, since it is smaller than the sum of its proper divisors (714019042736).

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

400620206064 is a wasteful number, since it uses less digits than its factorization.

400620206064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53762 (or 53756 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 400620206064 in words is "four hundred billion, six hundred twenty million, two hundred six thousand, sixty-four".