16407626568 has 64 divisors (see below), whose sum is σ = 43525460160. Its totient is φ = 5136408576.

The previous prime is 16407626561. The next prime is 16407626597. The reversal of 16407626568 is 86562670461.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 16407626568.

It is not an unprimeable number, because it can be changed into a prime (16407626561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147480 + ... + 233592.

It is an arithmetic number, because the mean of its divisors is an integer number (680085315).

Almost surely, 2^16407626568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16407626568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21762730080).

16407626568 is an abundant number, since it is smaller than the sum of its proper divisors (27117833592).

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

16407626568 is a wasteful number, since it uses less digits than its factorization.

16407626568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86606 (or 86602 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 16407626568 in words is "sixteen billion, four hundred seven million, six hundred twenty-six thousand, five hundred sixty-eight".