122837601661 has 2 divisors, whose sum is σ = 122837601662. Its totient is φ = 122837601660.

The previous prime is 122837601559. The next prime is 122837601713. The reversal of 122837601661 is 166106738221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112087022436 + 10750579225 = 334794^2 + 103685^2 .

It is a cyclic number.

It is not a de Polignac number, because 122837601661 - 2⁹ = 122837601149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122837605661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61418800830 + 61418800831.

It is an arithmetic number, because the mean of its divisors is an integer number (61418800831).

Almost surely, 2^122837601661 is an apocalyptic number.

It is an amenable number.

122837601661 is a deficient number, since it is larger than the sum of its proper divisors (1).

122837601661 is an equidigital number, since it uses as much as digits as its factorization.

122837601661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 122837601661 in words is "one hundred twenty-two billion, eight hundred thirty-seven million, six hundred one thousand, six hundred sixty-one".