16556022373013 has 2 divisors, whose sum is σ = 16556022373014. Its totient is φ = 16556022373012.

The previous prime is 16556022372977. The next prime is 16556022373021. The reversal of 16556022373013 is 31037322065561.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14726122276369 + 1829900096644 = 3837463^2 + 1352738^2 .

It is a cyclic number.

It is not a de Polignac number, because 16556022373013 - 2¹⁸ = 16556022110869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16556022373613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8278011186506 + 8278011186507.

It is an arithmetic number, because the mean of its divisors is an integer number (8278011186507).

Almost surely, 2^{16556022373013} is an apocalyptic number.

It is an amenable number.

16556022373013 is a deficient number, since it is larger than the sum of its proper divisors (1).

16556022373013 is an equidigital number, since it uses as much as digits as its factorization.

16556022373013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 44.

The spelling of 16556022373013 in words is "sixteen trillion, five hundred fifty-six billion, twenty-two million, three hundred seventy-three thousand, thirteen".