6456641115 has 16 divisors (see below), whose sum is σ = 10345379616. Its totient is φ = 3438624000.

The previous prime is 6456641099. The next prime is 6456641129. The reversal of 6456641115 is 5111466546.

It is a happy number.

It is not a de Polignac number, because 6456641115 - 2⁴ = 6456641099 is a prime.

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, 296506 + ... + 317535.

It is an arithmetic number, because the mean of its divisors is an integer number (646586226).

Almost surely, 2^6456641115 is an apocalyptic number.

6456641115 is a deficient number, since it is larger than the sum of its proper divisors (3888738501).

6456641115 is a wasteful number, since it uses less digits than its factorization.

6456641115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614750.

The product of its digits is 86400, while the sum is 39.

The square root of 6456641115 is about 80353.2271598347. The cubic root of 6456641115 is about 1862.0966370615.

The spelling of 6456641115 in words is "six billion, four hundred fifty-six million, six hundred forty-one thousand, one hundred fifteen".