10561655107 has 4 divisors (see below), whose sum is σ = 10734797056. Its totient is φ = 10388513160.

The previous prime is 10561655053. The next prime is 10561655119. The reversal of 10561655107 is 70155616501.

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 10561655107 - 2¹⁵ = 10561622339 is a prime.

It is a super-2 number, since 2×10561655107² (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 (10561655707) 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, 86570883 + ... + 86571004.

It is an arithmetic number, because the mean of its divisors is an integer number (2683699264).

Almost surely, 2^10561655107 is an apocalyptic number.

10561655107 is a deficient number, since it is larger than the sum of its proper divisors (173141949).

10561655107 is an equidigital number, since it uses as much as digits as its factorization.

10561655107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173141948.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 10561655107 in words is "ten billion, five hundred sixty-one million, six hundred fifty-five thousand, one hundred seven".