122663641550 has 12 divisors (see below), whose sum is σ = 228154373376. Its totient is φ = 49065456600.

The previous prime is 122663641531. The next prime is 122663641589. The reversal of 122663641550 is 55146366221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122663641498 and 122663641507.

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 5 ways as a sum of consecutive naturals, for example, 1226636366 + ... + 1226636465.

It is an arithmetic number, because the mean of its divisors is an integer number (19012864448).

Almost surely, 2^122663641550 is an apocalyptic number.

122663641550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122663641550 is a deficient number, since it is larger than the sum of its proper divisors (105490731826).

122663641550 is a wasteful number, since it uses less digits than its factorization.

122663641550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453272843 (or 2453272838 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 122663641550 in words is "one hundred twenty-two billion, six hundred sixty-three million, six hundred forty-one thousand, five hundred fifty".