122661602159 has 4 divisors (see below), whose sum is σ = 122924261304. Its totient is φ = 122398943016.

The previous prime is 122661602153. The next prime is 122661602263. The reversal of 122661602159 is 951206166221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122661602159 - 2⁸ = 122661601903 is a prime.

It is a super-2 number, since 2×122661602159² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122661602153) 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, 131328872 + ... + 131329805.

It is an arithmetic number, because the mean of its divisors is an integer number (30731065326).

Almost surely, 2^122661602159 is an apocalyptic number.

122661602159 is a deficient number, since it is larger than the sum of its proper divisors (262659145).

122661602159 is an equidigital number, since it uses as much as digits as its factorization.

122661602159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262659144.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 122661602159 in words is "one hundred twenty-two billion, six hundred sixty-one million, six hundred two thousand, one hundred fifty-nine".