6441631656056 has 64 divisors (see below), whose sum is σ = 12189912134400. Its totient is φ = 3191137754112.

The previous prime is 6441631656037. The next prime is 6441631656067. The reversal of 6441631656056 is 6506561361446.

It is a junction number, because it is equal to n+sod(n) for n = 6441631655989 and 6441631656007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191347705 + ... + 1191353111.

It is an arithmetic number, because the mean of its divisors is an integer number (190467377100).

Almost surely, 2^{6441631656056} is an apocalyptic number.

It is an amenable number.

6441631656056 is a deficient number, since it is larger than the sum of its proper divisors (5748280478344).

6441631656056 is a wasteful number, since it uses less digits than its factorization.

6441631656056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8616 (or 8612 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 53.

The spelling of 6441631656056 in words is "six trillion, four hundred forty-one billion, six hundred thirty-one million, six hundred fifty-six thousand, fifty-six".