6668507076 has 192 divisors, whose sum is σ = 19867330560. Its totient is φ = 1690813440.

The previous prime is 6668507039. The next prime is 6668507101. The reversal of 6668507076 is 6707058666.

It is a happy 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, 7351815 + ... + 7352721.

It is an arithmetic number, because the mean of its divisors is an integer number (103475680).

Almost surely, 2^6668507076 is an apocalyptic number.

6668507076 is a gapful number since it is divisible by the number (66) 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 6668507076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9933665280).

6668507076 is an abundant number, since it is smaller than the sum of its proper divisors (13198823484).

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

6668507076 is a wasteful number, since it uses less digits than its factorization.

6668507076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114 (or 1112 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The square root of 6668507076 is about 81660.9274745273. The cubic root of 6668507076 is about 1882.2452309766.

The spelling of 6668507076 in words is "six billion, six hundred sixty-eight million, five hundred seven thousand, seventy-six".