10561123685 has 16 divisors (see below), whose sum is σ = 15246134400. Its totient is φ = 6860759616.

The previous prime is 10561123597. The next prime is 10561123711. The reversal of 10561123685 is 58632116501.

It is a cyclic number.

It is not a de Polignac number, because 10561123685 - 2⁸ = 10561123429 is a prime.

It is a super-2 number, since 2×10561123685² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7940030 + ... + 7941359.

It is an arithmetic number, because the mean of its divisors is an integer number (952883400).

Almost surely, 2^10561123685 is an apocalyptic number.

It is an amenable number.

10561123685 is a deficient number, since it is larger than the sum of its proper divisors (4685010715).

10561123685 is a wasteful number, since it uses less digits than its factorization.

10561123685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15881420.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 10561123685 in words is "ten billion, five hundred sixty-one million, one hundred twenty-three thousand, six hundred eighty-five".