16237222721453 has 2 divisors, whose sum is σ = 16237222721454. Its totient is φ = 16237222721452.

The previous prime is 16237222721407. The next prime is 16237222721459. The reversal of 16237222721453 is 35412722273261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13931981758249 + 2305240963204 = 3732557^2 + 1518302^2 .

It is a cyclic number.

It is not a de Polignac number, because 16237222721453 - 2²⁴ = 16237205944237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16237222721398 and 16237222721407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16237222721459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8118611360726 + 8118611360727.

It is an arithmetic number, because the mean of its divisors is an integer number (8118611360727).

Almost surely, 2^{16237222721453} is an apocalyptic number.

It is an amenable number.

16237222721453 is a deficient number, since it is larger than the sum of its proper divisors (1).

16237222721453 is an equidigital number, since it uses as much as digits as its factorization.

16237222721453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 47.

The spelling of 16237222721453 in words is "sixteen trillion, two hundred thirty-seven billion, two hundred twenty-two million, seven hundred twenty-one thousand, four hundred fifty-three".