6665027776 has 112 divisors (see below), whose sum is σ = 15408737280. Its totient is φ = 2830464000.

The previous prime is 6665027771. The next prime is 6665027779. The reversal of 6665027776 is 6777205666.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6665027771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627631 + ... + 638161.

Almost surely, 2^6665027776 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 6665027776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7704368640).

6665027776 is an abundant number, since it is smaller than the sum of its proper divisors (8743709504).

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

6665027776 is a wasteful number, since it uses less digits than its factorization.

6665027776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10614 (or 10604 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 52.

The square root of 6665027776 is about 81639.6213611994. The cubic root of 6665027776 is about 1881.9178196059.

The spelling of 6665027776 in words is "six billion, six hundred sixty-five million, twenty-seven thousand, seven hundred seventy-six".