6665425104 has 160 divisors (see below), whose sum is σ = 19311763968. Its totient is φ = 1967616000.

The previous prime is 6665425099. The next prime is 6665425133. The reversal of 6665425104 is 4015245666.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1558489 + ... + 1562759.

Almost surely, 2^6665425104 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 6665425104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9655881984).

6665425104 is an abundant number, since it is smaller than the sum of its proper divisors (12646338864).

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

6665425104 is a wasteful number, since it uses less digits than its factorization.

6665425104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4397 (or 4391 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 6665425104 is about 81642.0547512126. The cubic root of 6665425104 is about 1881.9552149882.

The spelling of 6665425104 in words is "six billion, six hundred sixty-five million, four hundred twenty-five thousand, one hundred four".