16444330677400 has 96 divisors (see below), whose sum is σ = 38766419415360. Its totient is φ = 6486017725440.

The previous prime is 16444330677373. The next prime is 16444330677421. The reversal of 16444330677400 is 477603344461.

It is a super-2 number, since 2×16444330677400² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59620209 + ... + 59895391.

It is an arithmetic number, because the mean of its divisors is an integer number (403816868910).

Almost surely, 2^{16444330677400} is an apocalyptic number.

16444330677400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16444330677400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19383209707680).

16444330677400 is an abundant number, since it is smaller than the sum of its proper divisors (22322088737960).

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

16444330677400 is a wasteful number, since it uses less digits than its factorization.

16444330677400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279365 (or 279356 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 49.

The spelling of 16444330677400 in words is "sixteen trillion, four hundred forty-four billion, three hundred thirty million, six hundred seventy-seven thousand, four hundred".