6515885156 has 24 divisors (see below), whose sum is σ = 13094124960. Its totient is φ = 2805883200.

The previous prime is 6515885141. The next prime is 6515885179.

It is a happy number.

6515885156 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6515885156² = 84913518732362288672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3896225 + ... + 3897896.

It is an arithmetic number, because the mean of its divisors is an integer number (545588540).

Almost surely, 2^6515885156 is an apocalyptic number.

It is an amenable number.

6515885156 is an abundant number, since it is smaller than the sum of its proper divisors (6578239804).

6515885156 is a wasteful number, since it uses less digits than its factorization.

6515885156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7794155 (or 7794153 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 50.

The square root of 6515885156 is about 80721.0329220334. The cubic root of 6515885156 is about 1867.7746370550.

The spelling of 6515885156 in words is "six billion, five hundred fifteen million, eight hundred eighty-five thousand, one hundred fifty-six".