6666356592 has 80 divisors (see below), whose sum is σ = 21868481280. Its totient is φ = 1904672448.

The previous prime is 6666356561. The next prime is 6666356603. The reversal of 6666356592 is 2956536666.

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 15 ways as a sum of consecutive naturals, for example, 1099218 + ... + 1105265.

It is an arithmetic number, because the mean of its divisors is an integer number (273356016).

Almost surely, 2^6666356592 is an apocalyptic number.

It is an amenable number.

6666356592 is an abundant number, since it is smaller than the sum of its proper divisors (15202124688).

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

6666356592 is a wasteful number, since it uses less digits than its factorization.

6666356592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204507 (or 2204495 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 54.

The square root of 6666356592 is about 81647.7592589043. The cubic root of 6666356592 is about 1882.0428781664.

The spelling of 6666356592 in words is "six billion, six hundred sixty-six million, three hundred fifty-six thousand, five hundred ninety-two".