124640340066 has 48 divisors (see below), whose sum is σ = 296723962080. Its totient is φ = 37498066560.

The previous prime is 124640340047. The next prime is 124640340079. The reversal of 124640340066 is 660043046421.

124640340066 is a `hidden beast` number, since 1 + 2 + 4 + 640 + 3 + 4 + 0 + 0 + 6 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 124640340066.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2236855 + ... + 2291898.

It is an arithmetic number, because the mean of its divisors is an integer number (6181749210).

Almost surely, 2^124640340066 is an apocalyptic number.

124640340066 is an abundant number, since it is smaller than the sum of its proper divisors (172083622014).

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

124640340066 is a wasteful number, since it uses less digits than its factorization.

124640340066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528911 (or 4528908 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Adding to 124640340066 its reverse (660043046421), we get a palindrome (784683386487).

The spelling of 124640340066 in words is "one hundred twenty-four billion, six hundred forty million, three hundred forty thousand, sixty-six".