378166364664 has 64 divisors (see below), whose sum is σ = 1035789431040. Its totient is φ = 114104021760.

The previous prime is 378166364627. The next prime is 378166364671. The reversal of 378166364664 is 466463661873.

It is a junction number, because it is equal to n+sod(n) for n = 378166364598 and 378166364607.

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, 3012412 + ... + 3135435.

It is an arithmetic number, because the mean of its divisors is an integer number (16184209860).

Almost surely, 2^378166364664 is an apocalyptic number.

It is an amenable number.

378166364664 is an abundant number, since it is smaller than the sum of its proper divisors (657623066376).

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

378166364664 is a wasteful number, since it uses less digits than its factorization.

378166364664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6148100 (or 6148096 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 60.

The spelling of 378166364664 in words is "three hundred seventy-eight billion, one hundred sixty-six million, three hundred sixty-four thousand, six hundred sixty-four".