122765386705 has 16 divisors (see below), whose sum is σ = 159527191824. Its totient is φ = 90156637440.

The previous prime is 122765386691. The next prime is 122765386727. The reversal of 122765386705 is 507683567221.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 40831476624 + 81933910081 = 202068^2 + 286241^2 .

It is not a de Polignac number, because 122765386705 - 2⁹ = 122765386193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5205634 + ... + 5229163.

It is an arithmetic number, because the mean of its divisors is an integer number (9970449489).

Almost surely, 2^122765386705 is an apocalyptic number.

It is an amenable number.

122765386705 is a deficient number, since it is larger than the sum of its proper divisors (36761805119).

122765386705 is a wasteful number, since it uses less digits than its factorization.

122765386705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10434996.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 122765386705 in words is "one hundred twenty-two billion, seven hundred sixty-five million, three hundred eighty-six thousand, seven hundred five".