16306783445440 has 224 divisors, whose sum is σ = 39514931343360. Its totient is φ = 6408930816000.

The previous prime is 16306783445437. The next prime is 16306783445467. The reversal of 16306783445440 is 4454438760361.

It is a happy number.

It is a super-2 number, since 2×16306783445440² (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 31 ways as a sum of consecutive naturals, for example, 2303539821 + ... + 2303546899.

Almost surely, 2^{16306783445440} is an apocalyptic number.

16306783445440 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 16306783445440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19757465671680).

16306783445440 is an abundant number, since it is smaller than the sum of its proper divisors (23208147897920).

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

16306783445440 is a wasteful number, since it uses less digits than its factorization.

16306783445440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731 (or 7721 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 55.

The spelling of 16306783445440 in words is "sixteen trillion, three hundred six billion, seven hundred eighty-three million, four hundred forty-five thousand, four hundred forty".