16425247213601 has 2 divisors, whose sum is σ = 16425247213602. Its totient is φ = 16425247213600.

The previous prime is 16425247213567. The next prime is 16425247213603. The reversal of 16425247213601 is 10631274252461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14090646570001 + 2334600643600 = 3753751^2 + 1527940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16425247213601 is a prime.

Together with 16425247213603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16425247213603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8212623606800 + 8212623606801.

It is an arithmetic number, because the mean of its divisors is an integer number (8212623606801).

Almost surely, 2^{16425247213601} is an apocalyptic number.

It is an amenable number.

16425247213601 is a deficient number, since it is larger than the sum of its proper divisors (1).

16425247213601 is an equidigital number, since it uses as much as digits as its factorization.

16425247213601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 16425247213601 in words is "sixteen trillion, four hundred twenty-five billion, two hundred forty-seven million, two hundred thirteen thousand, six hundred one".