6696244590 has 128 divisors (see below), whose sum is σ = 18997936128. Its totient is φ = 1478183040.

The previous prime is 6696244579. The next prime is 6696244609. The reversal of 6696244590 is 954426966.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5122717 + ... + 5124023.

It is an arithmetic number, because the mean of its divisors is an integer number (148421376).

Almost surely, 2^6696244590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6696244590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9498968064).

6696244590 is an abundant number, since it is smaller than the sum of its proper divisors (12301691538).

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

6696244590 is a wasteful number, since it uses less digits than its factorization.

6696244590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142.

The product of its (nonzero) digits is 2799360, while the sum is 51.

The square root of 6696244590 is about 81830.5846856785. The cubic root of 6696244590 is about 1884.8513406863.

The spelling of 6696244590 in words is "six billion, six hundred ninety-six million, two hundred forty-four thousand, five hundred ninety".