123595406816 has 48 divisors (see below), whose sum is σ = 294447890016. Its totient is φ = 49853607936.

The previous prime is 123595406723. The next prime is 123595406819. The reversal of 123595406816 is 618604595321.

123595406816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123595406819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16224581 + ... + 16232196.

It is an arithmetic number, because the mean of its divisors is an integer number (6134331042).

Almost surely, 2^123595406816 is an apocalyptic number.

123595406816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123595406816 is an abundant number, since it is smaller than the sum of its proper divisors (170852483200).

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

123595406816 is a wasteful number, since it uses less digits than its factorization.

123595406816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32456811 (or 32456803 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 123595406816 in words is "one hundred twenty-three billion, five hundred ninety-five million, four hundred six thousand, eight hundred sixteen".