6515651270 has 32 divisors (see below), whose sum is σ = 12181065120. Its totient is φ = 2506336000.

The previous prime is 6515651249. The next prime is 6515651293. The reversal of 6515651270 is 721565156.

It is a super-2 number, since 2×6515651270² = 84907422944505225800, which contains 22 as substring.

It is a congruent 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, 28034 + ... + 117546.

It is an arithmetic number, because the mean of its divisors is an integer number (380658285).

Almost surely, 2^6515651270 is an apocalyptic number.

6515651270 is a deficient number, since it is larger than the sum of its proper divisors (5665413850).

6515651270 is a wasteful number, since it uses less digits than its factorization.

6515651270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89800.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 6515651270 is about 80719.5841788100. The cubic root of 6515651270 is about 1867.7522890263.

The spelling of 6515651270 in words is "six billion, five hundred fifteen million, six hundred fifty-one thousand, two hundred seventy".