5666919408 has 180 divisors, whose sum is σ = 16925339080. Its totient is φ = 1836660096.

The previous prime is 5666919367. The next prime is 5666919421. The reversal of 5666919408 is 8049196665.

It is a happy number.

It is a super-2 number, since 2×5666919408² = 64227951153534140928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3883383 + ... + 3884841.

Almost surely, 2^5666919408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5666919408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8462669540).

5666919408 is an abundant number, since it is smaller than the sum of its proper divisors (11258419672).

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

5666919408 is an equidigital number, since it uses as much as digits as its factorization.

5666919408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528 (or 1501 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 5666919408 is about 75278.9439883425. The cubic root of 5666919408 is about 1782.8535855540.

The spelling of 5666919408 in words is "five billion, six hundred sixty-six million, nine hundred nineteen thousand, four hundred eight".