16433253571056 has 240 divisors, whose sum is σ = 51559550144256. Its totient is φ = 4417269276672.

The previous prime is 16433253571051. The next prime is 16433253571067. The reversal of 16433253571056 is 65017535233461.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16433253571051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 254088835 + ... + 254153501.

Almost surely, 2^{16433253571056} is an apocalyptic number.

16433253571056 is a gapful number since it is divisible by the number (16) 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 16433253571056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25779775072128).

16433253571056 is an abundant number, since it is smaller than the sum of its proper divisors (35126296573200).

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

16433253571056 is a wasteful number, since it uses less digits than its factorization.

16433253571056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67336 (or 67313 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 51.

The spelling of 16433253571056 in words is "sixteen trillion, four hundred thirty-three billion, two hundred fifty-three million, five hundred seventy-one thousand, fifty-six".