12274613661 has 8 divisors (see below), whose sum is σ = 16765326144. Its totient is φ = 7983488480.

The previous prime is 12274613651. The next prime is 12274613669. The reversal of 12274613661 is 16631647221.

It is a happy number.

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 12274613661 - 2⁵ = 12274613629 is a prime.

It is a super-2 number, since 2×12274613661² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12274613669) 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, 49896681 + ... + 49896926.

It is an arithmetic number, because the mean of its divisors is an integer number (2095665768).

Almost surely, 2^12274613661 is an apocalyptic number.

It is an amenable number.

12274613661 is a deficient number, since it is larger than the sum of its proper divisors (4490712483).

12274613661 is an equidigital number, since it uses as much as digits as its factorization.

12274613661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99793651.

The product of its digits is 72576, while the sum is 39.

The spelling of 12274613661 in words is "twelve billion, two hundred seventy-four million, six hundred thirteen thousand, six hundred sixty-one".