122304736661 has 4 divisors (see below), whose sum is σ = 122580820032. Its totient is φ = 122028653292.

The previous prime is 122304736649. The next prime is 122304736667. The reversal of 122304736661 is 166637403221.

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 a de Polignac number, because none of the positive numbers 2^k-122304736661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122304736667) 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, 138041021 + ... + 138041906.

It is an arithmetic number, because the mean of its divisors is an integer number (30645205008).

Almost surely, 2^122304736661 is an apocalyptic number.

It is an amenable number.

122304736661 is a deficient number, since it is larger than the sum of its proper divisors (276083371).

122304736661 is an equidigital number, since it uses as much as digits as its factorization.

122304736661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276083370.

The product of its (nonzero) digits is 217728, while the sum is 41.

The spelling of 122304736661 in words is "one hundred twenty-two billion, three hundred four million, seven hundred thirty-six thousand, six hundred sixty-one".