10561051515 has 32 divisors (see below), whose sum is σ = 19373792256. Its totient is φ = 4812370560.

The previous prime is 10561051513. The next prime is 10561051517. The reversal of 10561051515 is 51515016501.

It is an interprime number because it is at equal distance from previous prime (10561051513) and next prime (10561051517).

It is not a de Polignac number, because 10561051515 - 2¹ = 10561051513 is a prime.

It is a super-2 number, since 2×10561051515² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10561051513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129052 + ... + 194361.

It is an arithmetic number, because the mean of its divisors is an integer number (605431008).

Almost surely, 2^10561051515 is an apocalyptic number.

10561051515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10561051515 is a deficient number, since it is larger than the sum of its proper divisors (8812740741).

10561051515 is a wasteful number, since it uses less digits than its factorization.

10561051515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323739.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 10561051515 in words is "ten billion, five hundred sixty-one million, fifty-one thousand, five hundred fifteen".