623707820016 has 20 divisors (see below), whose sum is σ = 1611245201832. Its totient is φ = 207902606656.

The previous prime is 623707819921. The next prime is 623707820017. The reversal of 623707820016 is 610028707326.

623707820016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×623707820016² (a number of 24 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 623707820016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623707820017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6496956411 + ... + 6496956506.

Almost surely, 2^623707820016 is an apocalyptic number.

It is an amenable number.

623707820016 is an abundant number, since it is smaller than the sum of its proper divisors (987537381816).

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

623707820016 is a wasteful number, since it uses less digits than its factorization.

623707820016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12993912928 (or 12993912922 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 623707820016 in words is "six hundred twenty-three billion, seven hundred seven million, eight hundred twenty thousand, sixteen".