10515651065 has 8 divisors (see below), whose sum is σ = 12622314888. Its totient is φ = 8410165120.

The previous prime is 10515651017. The next prime is 10515651071. The reversal of 10515651065 is 56015651501.

10515651065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1022656441 + 9492994624 = 31979^2 + 97432^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10515651065 - 2⁸ = 10515650809 is a prime.

It is a super-2 number, since 2×10515651065² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274706 + ... + 310635.

It is an arithmetic number, because the mean of its divisors is an integer number (1577789361).

Almost surely, 2^10515651065 is an apocalyptic number.

It is an amenable number.

10515651065 is a deficient number, since it is larger than the sum of its proper divisors (2106663823).

10515651065 is an equidigital number, since it uses as much as digits as its factorization.

10515651065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588939.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 10515651065 in words is "ten billion, five hundred fifteen million, six hundred fifty-one thousand, sixty-five".