396666044894592 has 256 divisors, whose sum is σ = 1281503353536000. Its totient is φ = 119791583262720.

The previous prime is 396666044894591. The next prime is 396666044894593. The reversal of 396666044894592 is 295498440666693.

It is an interprime number because it is at equal distance from previous prime (396666044894591) and next prime (396666044894593).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396666044894591) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6667092 + ... + 28944467.

It is an arithmetic number, because the mean of its divisors is an integer number (5005872474750).

Almost surely, 2^{396666044894592} is an apocalyptic number.

396666044894592 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396666044894592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640751676768000).

396666044894592 is an abundant number, since it is smaller than the sum of its proper divisors (884837308641408).

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

396666044894592 is a wasteful number, since it uses less digits than its factorization.

396666044894592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35611886 (or 35611868 counting only the distinct ones).

The product of its (nonzero) digits is 14511882240, while the sum is 81.

The spelling of 396666044894592 in words is "three hundred ninety-six trillion, six hundred sixty-six billion, forty-four million, eight hundred ninety-four thousand, five hundred ninety-two".