10561515910 has 32 divisors (see below), whose sum is σ = 20745331200. Its totient is φ = 3839374560.

The previous prime is 10561515901. The next prime is 10561515919. The reversal of 10561515910 is 1951516501.

10561515910 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10561515901) and next prime (10561515919).

It is a super-2 number, since 2×10561515910² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10561515919) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 398451 + ... + 424129.

It is an arithmetic number, because the mean of its divisors is an integer number (648291600).

Almost surely, 2^10561515910 is an apocalyptic number.

10561515910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10561515910 is a deficient number, since it is larger than the sum of its proper divisors (10183815290).

10561515910 is a wasteful number, since it uses less digits than its factorization.

10561515910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29436.

The product of its (nonzero) digits is 6750, while the sum is 34.

The spelling of 10561515910 in words is "ten billion, five hundred sixty-one million, five hundred fifteen thousand, nine hundred ten".