56378558064 has 20 divisors (see below), whose sum is σ = 145644608456. Its totient is φ = 18792852672.

The previous prime is 56378558029. The next prime is 56378558069. The reversal of 56378558064 is 46085587365.

It is a junction number, because it is equal to n+sod(n) for n = 56378557995 and 56378558013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56378558069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587276599 + ... + 587276694.

Almost surely, 2^56378558064 is an apocalyptic number.

It is an amenable number.

56378558064 is an abundant number, since it is smaller than the sum of its proper divisors (89266050392).

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

56378558064 is a wasteful number, since it uses less digits than its factorization.

56378558064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174553304 (or 1174553298 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 57.

The spelling of 56378558064 in words is "fifty-six billion, three hundred seventy-eight million, five hundred fifty-eight thousand, sixty-four".