6505940376441 has 96 divisors (see below), whose sum is σ = 10933984309248. Its totient is φ = 3831733563840.

The previous prime is 6505940376421. The next prime is 6505940376457. The reversal of 6505940376441 is 1446730495056.

It is a happy number.

6505940376441 is a `hidden beast` number, since 6 + 5 + 0 + 594 + 0 + 3 + 7 + 6 + 4 + 41 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-6505940376441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6505940376421) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22499320 + ... + 22786646.

It is an arithmetic number, because the mean of its divisors is an integer number (113895669888).

Almost surely, 2^{6505940376441} is an apocalyptic number.

It is an amenable number.

6505940376441 is a deficient number, since it is larger than the sum of its proper divisors (4428043932807).

6505940376441 is a wasteful number, since it uses less digits than its factorization.

6505940376441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287593 (or 287581 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 54.

The spelling of 6505940376441 in words is "six trillion, five hundred five billion, nine hundred forty million, three hundred seventy-six thousand, four hundred forty-one".