5666499378 has 48 divisors (see below), whose sum is σ = 12396436416. Its totient is φ = 1870607520.

The previous prime is 5666499361. The next prime is 5666499379. The reversal of 5666499378 is 8739946665.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5666499379) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 847368 + ... + 854028.

It is an arithmetic number, because the mean of its divisors is an integer number (258259092).

Almost surely, 2^5666499378 is an apocalyptic number.

5666499378 is an abundant number, since it is smaller than the sum of its proper divisors (6729937038).

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

5666499378 is a wasteful number, since it uses less digits than its factorization.

5666499378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7119 (or 7116 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The square root of 5666499378 is about 75276.1541127069. The cubic root of 5666499378 is about 1782.8095363131.

The spelling of 5666499378 in words is "five billion, six hundred sixty-six million, four hundred ninety-nine thousand, three hundred seventy-eight".