4581865942656 has 64 divisors (see below), whose sum is σ = 12341998123200. Its totient is φ = 1505777530880.

The previous prime is 4581865942651. The next prime is 4581865942681. The reversal of 4581865942656 is 6562495681854.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (4581865942651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84000501 + ... + 84055028.

It is an arithmetic number, because the mean of its divisors is an integer number (192843720675).

Almost surely, 2^{4581865942656} is an apocalyptic number.

It is an amenable number.

4581865942656 is an abundant number, since it is smaller than the sum of its proper divisors (7760132180544).

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

4581865942656 is a wasteful number, since it uses less digits than its factorization.

4581865942656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168055617 (or 168055605 counting only the distinct ones).

The product of its digits is 497664000, while the sum is 69.

The spelling of 4581865942656 in words is "four trillion, five hundred eighty-one billion, eight hundred sixty-five million, nine hundred forty-two thousand, six hundred fifty-six".