20567677401321 has 16 divisors (see below), whose sum is σ = 27555972485184. Its totient is φ = 13645741063104.

The previous prime is 20567677401311. The next prime is 20567677401431. The reversal of 20567677401321 is 12310477676502.

It is not a de Polignac number, because 20567677401321 - 2⁵ = 20567677401289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20567677401301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19156666 + ... + 20201811.

It is an arithmetic number, because the mean of its divisors is an integer number (1722248280324).

Almost surely, 2^{20567677401321} is an apocalyptic number.

It is an amenable number.

20567677401321 is a deficient number, since it is larger than the sum of its proper divisors (6988295083863).

20567677401321 is a wasteful number, since it uses less digits than its factorization.

20567677401321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39359320.

The product of its (nonzero) digits is 2963520, while the sum is 51.

The spelling of 20567677401321 in words is "twenty trillion, five hundred sixty-seven billion, six hundred seventy-seven million, four hundred one thousand, three hundred twenty-one".