10611059961 has 4 divisors (see below), whose sum is σ = 14148079952. Its totient is φ = 7074039972.

The previous prime is 10611059917. The next prime is 10611059969. The reversal of 10611059961 is 16995011601.

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: 16995011601 = 3 ⋅5665003867.

It is not a de Polignac number, because 10611059961 - 2²¹ = 10608962809 is a prime.

It is a super-2 number, since 2×10611059961² (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 (10611059969) 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, 1768509991 + ... + 1768509996.

It is an arithmetic number, because the mean of its divisors is an integer number (3537019988).

Almost surely, 2^10611059961 is an apocalyptic number.

It is an amenable number.

10611059961 is a deficient number, since it is larger than the sum of its proper divisors (3537019991).

10611059961 is an equidigital number, since it uses as much as digits as its factorization.

10611059961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537019990.

The product of its (nonzero) digits is 14580, while the sum is 39.

The spelling of 10611059961 in words is "ten billion, six hundred eleven million, fifty-nine thousand, nine hundred sixty-one".