6669836040 has 128 divisors (see below), whose sum is σ = 22903096320. Its totient is φ = 1522195200.

The previous prime is 6669836027. The next prime is 6669836053. The reversal of 6669836040 is 406389666.

It is an interprime number because it is at equal distance from previous prime (6669836027) and next prime (6669836053).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 574695 + ... + 586185.

It is an arithmetic number, because the mean of its divisors is an integer number (178930440).

Almost surely, 2^6669836040 is an apocalyptic number.

6669836040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6669836040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11451548160).

6669836040 is an abundant number, since it is smaller than the sum of its proper divisors (16233260280).

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

6669836040 is a wasteful number, since it uses less digits than its factorization.

6669836040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12203 (or 12199 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 48.

The square root of 6669836040 is about 81669.0641552846. The cubic root of 6669836040 is about 1882.3702599609.

The spelling of 6669836040 in words is "six billion, six hundred sixty-nine million, eight hundred thirty-six thousand, forty".