14365522556921 has 2 divisors, whose sum is σ = 14365522556922. Its totient is φ = 14365522556920.

The previous prime is 14365522556867. The next prime is 14365522556941. The reversal of 14365522556921 is 12965522556341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14157459769600 + 208062787321 = 3762640^2 + 456139^2 .

It is a cyclic number.

It is not a de Polignac number, because 14365522556921 - 2¹⁸ = 14365522294777 is a prime.

It is not a weakly prime, because it can be changed into another prime (14365522556941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7182761278460 + 7182761278461.

It is an arithmetic number, because the mean of its divisors is an integer number (7182761278461).

Almost surely, 2^{14365522556921} is an apocalyptic number.

It is an amenable number.

14365522556921 is a deficient number, since it is larger than the sum of its proper divisors (1).

14365522556921 is an equidigital number, since it uses as much as digits as its factorization.

14365522556921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440000, while the sum is 56.

The spelling of 14365522556921 in words is "fourteen trillion, three hundred sixty-five billion, five hundred twenty-two million, five hundred fifty-six thousand, nine hundred twenty-one".