20464122164131 has 2 divisors, whose sum is σ = 20464122164132. Its totient is φ = 20464122164130.

The previous prime is 20464122164029. The next prime is 20464122164173. The reversal of 20464122164131 is 13146122146402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20464122164131 is a prime.

It is a super-2 number, since 2×20464122164131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20464122164191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10232061082065 + 10232061082066.

It is an arithmetic number, because the mean of its divisors is an integer number (10232061082066).

Almost surely, 2^{20464122164131} is an apocalyptic number.

20464122164131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20464122164131 is an equidigital number, since it uses as much as digits as its factorization.

20464122164131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 20464122164131 in words is "twenty trillion, four hundred sixty-four billion, one hundred twenty-two million, one hundred sixty-four thousand, one hundred thirty-one".