6306630666 has 64 divisors (see below), whose sum is σ = 14686672896. Its totient is φ = 1768248000.

The previous prime is 6306630637. The next prime is 6306630713. The reversal of 6306630666 is 6660366036.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 520396 + ... + 532376.

It is an arithmetic number, because the mean of its divisors is an integer number (229479264).

Almost surely, 2^6306630666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6306630666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7343336448).

6306630666 is an abundant number, since it is smaller than the sum of its proper divisors (8380042230).

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

6306630666 is a wasteful number, since it uses less digits than its factorization.

6306630666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12227.

The product of its (nonzero) digits is 419904, while the sum is 42.

The square root of 6306630666 is about 79414.2976169909. The cubic root of 6306630666 is about 1847.5624743105.

The spelling of 6306630666 in words is "six billion, three hundred six million, six hundred thirty thousand, six hundred sixty-six".