10561615497 has 6 divisors (see below), whose sum is σ = 15255666842. Its totient is φ = 7041076992.

The previous prime is 10561615469. The next prime is 10561615499. The reversal of 10561615497 is 79451616501.

10561615497 is a `hidden beast` number, since 10 + 5 + 616 + 15 + 4 + 9 + 7 = 666.

10561615497 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 only one way, i.e., 7388433936 + 3173181561 = 85956^2 + 56331^2 .

It is not a de Polignac number, because 10561615497 - 2²⁰ = 10560566921 is a prime.

It is a super-2 number, since 2×10561615497² (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 (10561615499) 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 5 ways as a sum of consecutive naturals, for example, 586756408 + ... + 586756425.

Almost surely, 2^10561615497 is an apocalyptic number.

It is an amenable number.

10561615497 is a deficient number, since it is larger than the sum of its proper divisors (4694051345).

10561615497 is a wasteful number, since it uses less digits than its factorization.

10561615497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173512839 (or 1173512836 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 10561615497 in words is "ten billion, five hundred sixty-one million, six hundred fifteen thousand, four hundred ninety-seven".