10550661061 has 4 divisors (see below), whose sum is σ = 10556793324. Its totient is φ = 10544528800.

The previous prime is 10550661059. The next prime is 10550661089. The reversal of 10550661061 is 16016605501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5220785025 + 5329876036 = 72255^2 + 73006^2 .

It is a cyclic number.

It is not a de Polignac number, because 10550661061 - 2¹ = 10550661059 is a prime.

It is a super-2 number, since 2×10550661061² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10550665061) 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, 3063550 + ... + 3066991.

It is an arithmetic number, because the mean of its divisors is an integer number (2639198331).

Almost surely, 2^10550661061 is an apocalyptic number.

It is an amenable number.

10550661061 is a deficient number, since it is larger than the sum of its proper divisors (6132263).

10550661061 is an equidigital number, since it uses as much as digits as its factorization.

10550661061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6132262.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 10550661061 in words is "ten billion, five hundred fifty million, six hundred sixty-one thousand, sixty-one".