123664116016 has 40 divisors (see below), whose sum is σ = 273849285024. Its totient is φ = 52994726400.

The previous prime is 123664116013. The next prime is 123664116097. The reversal of 123664116016 is 610611466321.

It is not an unprimeable number, because it can be changed into a prime (123664116013) 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, 1689066 + ... + 1760758.

Almost surely, 2^123664116016 is an apocalyptic number.

123664116016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123664116016 is an abundant number, since it is smaller than the sum of its proper divisors (150185169008).

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

123664116016 is a wasteful number, since it uses less digits than its factorization.

123664116016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87109 (or 87103 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 123664116016 in words is "one hundred twenty-three billion, six hundred sixty-four million, one hundred sixteen thousand, sixteen".