122071665565 has 8 divisors (see below), whose sum is σ = 146488612320. Its totient is φ = 97655590032.

The previous prime is 122071665539. The next prime is 122071665619. The reversal of 122071665565 is 565566170221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122071665565 - 2¹³ = 122071657373 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 145566 + ... + 515104.

It is an arithmetic number, because the mean of its divisors is an integer number (18311076540).

Almost surely, 2^122071665565 is an apocalyptic number.

It is an amenable number.

122071665565 is a deficient number, since it is larger than the sum of its proper divisors (24416946755).

122071665565 is an equidigital number, since it uses as much as digits as its factorization.

122071665565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435611.

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 122071665565 in words is "one hundred twenty-two billion, seventy-one million, six hundred sixty-five thousand, five hundred sixty-five".