10839075661 has 4 divisors (see below), whose sum is σ = 11091147232. Its totient is φ = 10587004092.

The previous prime is 10839075647. The next prime is 10839075677. The reversal of 10839075661 is 16657093801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16657093801 = 53003 ⋅314267.

It is a cyclic number.

It is not a de Polignac number, because 10839075661 - 2²⁹ = 10302204749 is a prime.

It is a super-2 number, since 2×10839075661² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10839015661) 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, 126035721 + ... + 126035806.

It is an arithmetic number, because the mean of its divisors is an integer number (2772786808).

Almost surely, 2^10839075661 is an apocalyptic number.

It is an amenable number.

10839075661 is a deficient number, since it is larger than the sum of its proper divisors (252071571).

10839075661 is an equidigital number, since it uses as much as digits as its factorization.

10839075661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252071570.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 10839075661 in words is "ten billion, eight hundred thirty-nine million, seventy-five thousand, six hundred sixty-one".