666192384 has 320 divisors, whose sum is σ = 2323601280. Its totient is φ = 185794560.

The previous prime is 666192353. The next prime is 666192391. The reversal of 666192384 is 483291666.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1976664 + ... + 1977000.

It is an arithmetic number, because the mean of its divisors is an integer number (7261254).

Almost surely, 2^666192384 is an apocalyptic number.

666192384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 666192384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1161800640).

666192384 is an abundant number, since it is smaller than the sum of its proper divisors (1657408896).

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

666192384 is a wasteful number, since it uses less digits than its factorization.

666192384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 366 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 666192384 is about 25810.7028962793. The cubic root of 666192384 is about 873.3732535540.

The spelling of 666192384 in words is "six hundred sixty-six million, one hundred ninety-two thousand, three hundred eighty-four".