666588900096 has 540 divisors, whose sum is σ = 2297597669640. Its totient is φ = 185745530880.

The previous prime is 666588900091. The next prime is 666588900097. The reversal of 666588900096 is 690009885666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (666588900091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 226806595 + ... + 226809533.

Almost surely, 2^666588900096 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 666588900096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1148798834820).

666588900096 is an abundant number, since it is smaller than the sum of its proper divisors (1631008769544).

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

666588900096 is an equidigital number, since it uses as much as digits as its factorization.

666588900096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030 (or 2992 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 666588900096 in words is "six hundred sixty-six billion, five hundred eighty-eight million, nine hundred thousand, ninety-six".