6511255345 has 16 divisors (see below), whose sum is σ = 9217778688. Its totient is φ = 4320832320.

The previous prime is 6511255327. The next prime is 6511255379. The reversal of 6511255345 is 5435521156.

It is a happy number.

It is not a de Polignac number, because 6511255345 - 2¹³ = 6511247153 is a prime.

It is a Duffinian 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, 2999494 + ... + 3001663.

It is an arithmetic number, because the mean of its divisors is an integer number (576111168).

Almost surely, 2^6511255345 is an apocalyptic number.

It is an amenable number.

6511255345 is a deficient number, since it is larger than the sum of its proper divisors (2706523343).

6511255345 is a wasteful number, since it uses less digits than its factorization.

6511255345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6001200.

The product of its digits is 90000, while the sum is 37.

The square root of 6511255345 is about 80692.3499781733. The cubic root of 6511255345 is about 1867.3321547068.

The spelling of 6511255345 in words is "six billion, five hundred eleven million, two hundred fifty-five thousand, three hundred forty-five".