11612510061 has 4 divisors (see below), whose sum is σ = 15483346752. Its totient is φ = 7741673372.

The previous prime is 11612510053. The next prime is 11612510071. The reversal of 11612510061 is 16001521611.

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.

It is a cyclic number.

It is not a de Polignac number, because 11612510061 - 2³ = 11612510053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11612510011) 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, 1935418341 + ... + 1935418346.

It is an arithmetic number, because the mean of its divisors is an integer number (3870836688).

Almost surely, 2^11612510061 is an apocalyptic number.

It is an amenable number.

11612510061 is a deficient number, since it is larger than the sum of its proper divisors (3870836691).

11612510061 is an equidigital number, since it uses as much as digits as its factorization.

11612510061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3870836690.

The product of its (nonzero) digits is 360, while the sum is 24.

The spelling of 11612510061 in words is "eleven billion, six hundred twelve million, five hundred ten thousand, sixty-one".