16283645280 has 648 divisors, whose sum is σ = 67260433968. Its totient is φ = 3514060800.

The previous prime is 16283645197. The next prime is 16283645291. The reversal of 16283645280 is 8254638261.

16283645280 is a `hidden beast` number, since 1 + 6 + 2 + 8 + 364 + 5 + 280 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 397162060 + ... + 397162100.

It is an arithmetic number, because the mean of its divisors is an integer number (103796966).

Almost surely, 2^16283645280 is an apocalyptic number.

16283645280 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 16283645280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33630216984).

16283645280 is an abundant number, since it is smaller than the sum of its proper divisors (50976788688).

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

16283645280 is a wasteful number, since it uses less digits than its factorization.

16283645280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 16283645280 in words is "sixteen billion, two hundred eighty-three million, six hundred forty-five thousand, two hundred eighty".