3120651666 has 48 divisors (see below), whose sum is σ = 7380565920. Its totient is φ = 945077760.

The previous prime is 3120651649. The next prime is 3120651671. The reversal of 3120651666 is 6661560213.

It is a self number, because there is not a number n which added to its sum of digits gives 3120651666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 414645 + ... + 422103.

It is an arithmetic number, because the mean of its divisors is an integer number (153761790).

Almost surely, 2^3120651666 is an apocalyptic number.

3120651666 is an abundant number, since it is smaller than the sum of its proper divisors (4259914254).

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

3120651666 is a wasteful number, since it uses less digits than its factorization.

3120651666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9591 (or 9588 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 3120651666 is about 55862.7932169526. The cubic root of 3120651666 is about 1461.3304420329.

The spelling of 3120651666 in words is "three billion, one hundred twenty million, six hundred fifty-one thousand, six hundred sixty-six".