16326781002675 has 288 divisors, whose sum is σ = 35534525644800. Its totient is φ = 7057266048000.

The previous prime is 16326781002673. The next prime is 16326781002683. The reversal of 16326781002675 is 57620018762361.

16326781002675 is a `hidden beast` number, since 16 + 3 + 267 + 8 + 100 + 267 + 5 = 666.

It is not a de Polignac number, because 16326781002675 - 2¹ = 16326781002673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16326781002671) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 507673246 + ... + 507705404.

It is an arithmetic number, because the mean of its divisors is an integer number (123383769600).

Almost surely, 2^{16326781002675} is an apocalyptic number.

16326781002675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16326781002675 is an abundant number, since it is smaller than the sum of its proper divisors (19207744642125).

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

16326781002675 is a wasteful number, since it uses less digits than its factorization.

16326781002675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32739 (or 32731 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 16326781002675 in words is "sixteen trillion, three hundred twenty-six billion, seven hundred eighty-one million, two thousand, six hundred seventy-five".