10561655099 has 8 divisors (see below), whose sum is σ = 10679093568. Its totient is φ = 10444563720.

The previous prime is 10561655053. The next prime is 10561655119. The reversal of 10561655099 is 99055616501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10561655099 - 2²⁰ = 10560606523 is a prime.

It is a super-2 number, since 2×10561655099² (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 (10561658099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25337 + ... + 147530.

It is an arithmetic number, because the mean of its divisors is an integer number (1334886696).

Almost surely, 2^10561655099 is an apocalyptic number.

10561655099 is a deficient number, since it is larger than the sum of its proper divisors (117438469).

10561655099 is a wasteful number, since it uses less digits than its factorization.

10561655099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173545.

The product of its (nonzero) digits is 364500, while the sum is 47.

The spelling of 10561655099 in words is "ten billion, five hundred sixty-one million, six hundred fifty-five thousand, ninety-nine".