16944400026 has 24 divisors (see below), whose sum is σ = 36722387520. Its totient is φ = 5646668616.

The previous prime is 16944399973. The next prime is 16944400043. The reversal of 16944400026 is 62000444961.

It is a super-2 number, since 2×16944400026² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49560 + ... + 190643.

It is an arithmetic number, because the mean of its divisors is an integer number (1530099480).

Almost surely, 2^16944400026 is an apocalyptic number.

16944400026 is an abundant number, since it is smaller than the sum of its proper divisors (19777987494).

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

16944400026 is a wasteful number, since it uses less digits than its factorization.

16944400026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244130 (or 244127 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 16944400026 its reverse (62000444961), we get a palindrome (78944844987).

The spelling of 16944400026 in words is "sixteen billion, nine hundred forty-four million, four hundred thousand, twenty-six".