10515151506665 has 8 divisors (see below), whose sum is σ = 13588811177928. Its totient is φ = 7765034958720.

The previous prime is 10515151506659. The next prime is 10515151506721. The reversal of 10515151506665 is 56660515151501.

It can be written as a sum of positive squares in 4 ways, for example, as 2105261706304 + 8409889800361 = 1450952^2 + 2899981^2 .

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

It is not a de Polignac number, because 10515151506665 - 2⁴ = 10515151506649 is a prime.

It is a super-2 number, since 2×10515151506665² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

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, 80885780756 + ... + 80885780885.

It is an arithmetic number, because the mean of its divisors is an integer number (1698601397241).

Almost surely, 2^{10515151506665} is an apocalyptic number.

It is an amenable number.

10515151506665 is a deficient number, since it is larger than the sum of its proper divisors (3073659671263).

10515151506665 is a wasteful number, since it uses less digits than its factorization.

10515151506665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161771561659.

The product of its (nonzero) digits is 675000, while the sum is 47.

The spelling of 10515151506665 in words is "ten trillion, five hundred fifteen billion, one hundred fifty-one million, five hundred six thousand, six hundred sixty-five".