123616646132 has 48 divisors (see below), whose sum is σ = 259820373120. Its totient is φ = 50347930752.

The previous prime is 123616646117. The next prime is 123616646141. The reversal of 123616646132 is 231646616321.

123616646132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×123616646132² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123616646132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1342907 + ... + 1432002.

It is an arithmetic number, because the mean of its divisors is an integer number (5412924440).

Almost surely, 2^123616646132 is an apocalyptic number.

It is an amenable number.

123616646132 is an abundant number, since it is smaller than the sum of its proper divisors (136203726988).

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

123616646132 is a wasteful number, since it uses less digits than its factorization.

123616646132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775000 (or 2774998 counting only the distinct ones).

The product of its digits is 186624, while the sum is 41.

The spelling of 123616646132 in words is "one hundred twenty-three billion, six hundred sixteen million, six hundred forty-six thousand, one hundred thirty-two".