3866708664 has 320 divisors, whose sum is σ = 13914109440. Its totient is φ = 975110400.

The previous prime is 3866708653. The next prime is 3866708669. The reversal of 3866708664 is 4668076683.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 3866708664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866708669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1354839 + ... + 1357689.

It is an arithmetic number, because the mean of its divisors is an integer number (43481592).

Almost surely, 2^3866708664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3866708664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6957054720).

3866708664 is an abundant number, since it is smaller than the sum of its proper divisors (10047400776).

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

3866708664 is a wasteful number, since it uses less digits than its factorization.

3866708664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912 (or 2899 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The square root of 3866708664 is about 62182.8647136814. The cubic root of 3866708664 is about 1569.5692577375.

The spelling of 3866708664 in words is "three billion, eight hundred sixty-six million, seven hundred eight thousand, six hundred sixty-four".