16452310717021 has 2 divisors, whose sum is σ = 16452310717022. Its totient is φ = 16452310717020.

The previous prime is 16452310716983. The next prime is 16452310717111. The reversal of 16452310717021 is 12071701325461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11408755959225 + 5043554757796 = 3377685^2 + 2245786^2 .

It is a cyclic number.

It is not a de Polignac number, because 16452310717021 - 2¹³ = 16452310708829 is a prime.

It is a super-2 number, since 2×16452310717021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16452310117021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8226155358510 + 8226155358511.

It is an arithmetic number, because the mean of its divisors is an integer number (8226155358511).

Almost surely, 2^{16452310717021} is an apocalyptic number.

It is an amenable number.

16452310717021 is a deficient number, since it is larger than the sum of its proper divisors (1).

16452310717021 is an equidigital number, since it uses as much as digits as its factorization.

16452310717021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 16452310717021 in words is "sixteen trillion, four hundred fifty-two billion, three hundred ten million, seven hundred seventeen thousand, twenty-one".