400466542164 has 48 divisors (see below), whose sum is σ = 1007796052032. Its totient is φ = 123037350912.

The previous prime is 400466542097. The next prime is 400466542181. The reversal of 400466542164 is 461245664004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1802214 + ... + 2012189.

It is an arithmetic number, because the mean of its divisors is an integer number (20995751084).

Almost surely, 2^400466542164 is an apocalyptic number.

It is an amenable number.

400466542164 is an abundant number, since it is smaller than the sum of its proper divisors (607329509868).

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

400466542164 is a wasteful number, since it uses less digits than its factorization.

400466542164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815096 (or 3815094 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 400466542164 in words is "four hundred billion, four hundred sixty-six million, five hundred forty-two thousand, one hundred sixty-four".