124320611646 has 160 divisors (see below), whose sum is σ = 347764919040. Its totient is φ = 32248627200.

The previous prime is 124320611633. The next prime is 124320611683. The reversal of 124320611646 is 646116023421.

124320611646 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 2 + 0 + 6 + 1 + 1 + 646 = 666.

It is a super-2 number, since 2×124320611646² (a number of 23 digits) contains 22 as substring.

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 124320611646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10110270 + ... + 10122558.

It is an arithmetic number, because the mean of its divisors is an integer number (2173530744).

Almost surely, 2^124320611646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124320611646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173882459520).

124320611646 is an abundant number, since it is smaller than the sum of its proper divisors (223444307394).

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

124320611646 is a wasteful number, since it uses less digits than its factorization.

124320611646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13132 (or 13123 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 124320611646 in words is "one hundred twenty-four billion, three hundred twenty million, six hundred eleven thousand, six hundred forty-six".