122655705656017 has 4 divisors (see below), whose sum is σ = 123802020662256. Its totient is φ = 121509390649780.

The previous prime is 122655705655969. The next prime is 122655705656059. The reversal of 122655705656017 is 710656507556221.

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-122655705656017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122655705656917) 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, 573157502959 + ... + 573157503172.

It is an arithmetic number, because the mean of its divisors is an integer number (30950505165564).

Almost surely, 2^{122655705656017} is an apocalyptic number.

It is an amenable number.

122655705656017 is a deficient number, since it is larger than the sum of its proper divisors (1146315006239).

122655705656017 is a wasteful number, since it uses less digits than its factorization.

122655705656017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146315006238.

The product of its (nonzero) digits is 26460000, while the sum is 58.

The spelling of 122655705656017 in words is "one hundred twenty-two trillion, six hundred fifty-five billion, seven hundred five million, six hundred fifty-six thousand, seventeen".