16283773440 has 800 divisors, whose sum is σ = 65238592320. Its totient is φ = 3880673280.

The previous prime is 16283773369. The next prime is 16283773469. The reversal of 16283773440 is 4437738261.

16283773440 is a `hidden beast` number, since 1 + 62 + 83 + 7 + 73 + 440 = 666.

It is a super-2 number, since 2×16283773440² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 275996131 + ... + 275996189.

Almost surely, 2^16283773440 is an apocalyptic number.

16283773440 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 16283773440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32619296160).

16283773440 is an abundant number, since it is smaller than the sum of its proper divisors (48954818880).

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

16283773440 is an frugal number, since it uses more digits than its factorization.

16283773440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 16283773440 in words is "sixteen billion, two hundred eighty-three million, seven hundred seventy-three thousand, four hundred forty".