16812581082755 has 4 divisors (see below), whose sum is σ = 20175097299312. Its totient is φ = 13450064866200.

The previous prime is 16812581082751. The next prime is 16812581082757. The reversal of 16812581082755 is 55728018521861.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16812581082755 - 2² = 16812581082751 is a prime.

It is a super-2 number, since 2×16812581082755² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16812581082694 and 16812581082703.

It is not an unprimeable number, because it can be changed into a prime (16812581082751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1681258108271 + ... + 1681258108280.

It is an arithmetic number, because the mean of its divisors is an integer number (5043774324828).

Almost surely, 2^{16812581082755} is an apocalyptic number.

16812581082755 is a deficient number, since it is larger than the sum of its proper divisors (3362516216557).

16812581082755 is an equidigital number, since it uses as much as digits as its factorization.

16812581082755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362516216556.

The product of its (nonzero) digits is 10752000, while the sum is 59.

The spelling of 16812581082755 in words is "sixteen trillion, eight hundred twelve billion, five hundred eighty-one million, eighty-two thousand, seven hundred fifty-five".