10646215315 has 4 divisors (see below), whose sum is σ = 12775458384. Its totient is φ = 8516972248.

The previous prime is 10646215291. The next prime is 10646215319. The reversal of 10646215315 is 51351264601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10646215315 - 2¹⁷ = 10646084243 is a prime.

It is a super-2 number, since 2×10646215315² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10646215319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064621527 + ... + 1064621536.

It is an arithmetic number, because the mean of its divisors is an integer number (3193864596).

Almost surely, 2^10646215315 is an apocalyptic number.

10646215315 is a deficient number, since it is larger than the sum of its proper divisors (2129243069).

10646215315 is an equidigital number, since it uses as much as digits as its factorization.

10646215315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129243068.

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 10646215315 its reverse (51351264601), we get a palindrome (61997479916).

The spelling of 10646215315 in words is "ten billion, six hundred forty-six million, two hundred fifteen thousand, three hundred fifteen".