5655312378 has 64 divisors (see below), whose sum is σ = 13317678720. Its totient is φ = 1772741376.

The previous prime is 5655312373. The next prime is 5655312389. The reversal of 5655312378 is 8732135565.

5655312378 is a `hidden beast` number, since 5 + 6 + 553 + 1 + 23 + 78 = 666.

It is not an unprimeable number, because it can be changed into a prime (5655312373) 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, 1772901 + ... + 1776087.

It is an arithmetic number, because the mean of its divisors is an integer number (208088730).

Almost surely, 2^5655312378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5655312378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6658839360).

5655312378 is an abundant number, since it is smaller than the sum of its proper divisors (7662366342).

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

5655312378 is a wasteful number, since it uses less digits than its factorization.

5655312378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5148 (or 5142 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 5655312378 is about 75201.8110021295. The cubic root of 5655312378 is about 1781.6355352077.

The spelling of 5655312378 in words is "five billion, six hundred fifty-five million, three hundred twelve thousand, three hundred seventy-eight".