122017666605 has 48 divisors (see below), whose sum is σ = 204963720000. Its totient is φ = 61970904576.

The previous prime is 122017666559. The next prime is 122017666619. The reversal of 122017666605 is 506666710221.

It is not a de Polignac number, because 122017666605 - 2⁶ = 122017666541 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 854646 + ... + 987144.

It is an arithmetic number, because the mean of its divisors is an integer number (4270077500).

Almost surely, 2^122017666605 is an apocalyptic number.

122017666605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122017666605 is a deficient number, since it is larger than the sum of its proper divisors (82946053395).

122017666605 is a wasteful number, since it uses less digits than its factorization.

122017666605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132638 (or 132609 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 122017666605 in words is "one hundred twenty-two billion, seventeen million, six hundred sixty-six thousand, six hundred five".