122663643246 has 40 divisors (see below), whose sum is σ = 275223684384. Its totient is φ = 40833396000.

The previous prime is 122663643241. The next prime is 122663643253. The reversal of 122663643246 is 642346366221.

122663643246 is a `hidden beast` number, since 1 + 2 + 2 + 6 + 636 + 4 + 3 + 2 + 4 + 6 = 666.

It is a super-2 number, since 2×122663643246² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122663643241) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 382455 + ... + 625778.

Almost surely, 2^122663643246 is an apocalyptic number.

122663643246 is an abundant number, since it is smaller than the sum of its proper divisors (152560041138).

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

122663643246 is a wasteful number, since it uses less digits than its factorization.

122663643246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008998 (or 1008989 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 45.

The spelling of 122663643246 in words is "one hundred twenty-two billion, six hundred sixty-three million, six hundred forty-three thousand, two hundred forty-six".