13164782181805 has 32 divisors (see below), whose sum is σ = 15893370132480. Its totient is φ = 10468276995840.

The previous prime is 13164782181799. The next prime is 13164782181827. The reversal of 13164782181805 is 50818128746131.

It is not a de Polignac number, because 13164782181805 - 2⁴¹ = 10965758926253 is a prime.

It is a super-2 number, since 2×13164782181805² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2587923972 + ... + 2587929058.

It is an arithmetic number, because the mean of its divisors is an integer number (496667816640).

Almost surely, 2^{13164782181805} is an apocalyptic number.

It is an amenable number.

13164782181805 is a deficient number, since it is larger than the sum of its proper divisors (2728587950675).

13164782181805 is a wasteful number, since it uses less digits than its factorization.

13164782181805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9549.

The product of its (nonzero) digits is 2580480, while the sum is 55.

The spelling of 13164782181805 in words is "thirteen trillion, one hundred sixty-four billion, seven hundred eighty-two million, one hundred eighty-one thousand, eight hundred five".