6506890515 has 32 divisors (see below), whose sum is σ = 11966702400. Its totient is φ = 3350672640.

The previous prime is 6506890447. The next prime is 6506890517. The reversal of 6506890515 is 5150986056.

It is a happy number.

6506890515 is a `hidden beast` number, since 6 + 50 + 6 + 89 + 0 + 515 = 666.

6506890515 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6506890515 - 2⁷ = 6506890387 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (6506890517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 827106 + ... + 834935.

It is an arithmetic number, because the mean of its divisors is an integer number (373959450).

Almost surely, 2^6506890515 is an apocalyptic number.

6506890515 is a deficient number, since it is larger than the sum of its proper divisors (5459811885).

6506890515 is a wasteful number, since it uses less digits than its factorization.

6506890515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662084 (or 1662078 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The square root of 6506890515 is about 80665.2993238109. The cubic root of 6506890515 is about 1866.9148051120.

The spelling of 6506890515 in words is "six billion, five hundred six million, eight hundred ninety thousand, five hundred fifteen".