122645107072446 has 32 divisors (see below), whose sum is σ = 280338797346048. Its totient is φ = 35040568658880.

The previous prime is 122645107072441. The next prime is 122645107072471. The reversal of 122645107072446 is 644270701546221.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122645107072441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35431095 + ... + 38738258.

It is an arithmetic number, because the mean of its divisors is an integer number (8760587417064).

Almost surely, 2^{122645107072446} is an apocalyptic number.

122645107072446 is an abundant number, since it is smaller than the sum of its proper divisors (157693690273602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122645107072446 is a wasteful number, since it uses less digits than its factorization.

122645107072446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74208736.

The product of its (nonzero) digits is 4515840, while the sum is 51.

The spelling of 122645107072446 in words is "one hundred twenty-two trillion, six hundred forty-five billion, one hundred seven million, seventy-two thousand, four hundred forty-six".