4066644624 has 40 divisors (see below), whose sum is σ = 12006285120. Its totient is φ = 1161898368.

The previous prime is 4066644619. The next prime is 4066644643. The reversal of 4066644624 is 4264466604.

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 7 ways as a sum of consecutive naturals, for example, 6051219 + ... + 6051890.

It is an arithmetic number, because the mean of its divisors is an integer number (300157128).

Almost surely, 2^4066644624 is an apocalyptic number.

It is an amenable number.

4066644624 is an abundant number, since it is smaller than the sum of its proper divisors (7939640496).

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

4066644624 is a wasteful number, since it uses less digits than its factorization.

4066644624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12103127 (or 12103121 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The square root of 4066644624 is about 63770.2487371658. The cubic root of 4066644624 is about 1596.1685175796.

The spelling of 4066644624 in words is "four billion, sixty-six million, six hundred forty-four thousand, six hundred twenty-four".