6465755115 has 12 divisors (see below), whose sum is σ = 11207308944. Its totient is φ = 3448402704.

The previous prime is 6465755099. The next prime is 6465755137. The reversal of 6465755115 is 5115575646.

It is a happy number.

6465755115 is a `hidden beast` number, since 6 + 4 + 65 + 75 + 511 + 5 = 666.

It is not a de Polignac number, because 6465755115 - 2⁴ = 6465755099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 143683447 = 6465755115 / (6 + 4 + 6 + 5 + 7 + 5 + 5 + 1 + 1 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71841679 + ... + 71841768.

It is an arithmetic number, because the mean of its divisors is an integer number (933942412).

Almost surely, 2^6465755115 is an apocalyptic number.

6465755115 is a deficient number, since it is larger than the sum of its proper divisors (4741553829).

6465755115 is a wasteful number, since it uses less digits than its factorization.

6465755115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143683458 (or 143683455 counting only the distinct ones).

The product of its digits is 630000, while the sum is 45.

The square root of 6465755115 is about 80409.9192575145. The cubic root of 6465755115 is about 1862.9723849612.

The spelling of 6465755115 in words is "six billion, four hundred sixty-five million, seven hundred fifty-five thousand, one hundred fifteen".