16453561001 has 2 divisors, whose sum is σ = 16453561002. Its totient is φ = 16453561000.

The previous prime is 16453560983. The next prime is 16453561013. The reversal of 16453561001 is 10016535461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11438088601 + 5015472400 = 106949^2 + 70820^2 .

It is a cyclic number.

It is not a de Polignac number, because 16453561001 - 2¹⁴ = 16453544617 is a prime.

It is a super-2 number, since 2×16453561001² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16453561021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8226780500 + 8226780501.

It is an arithmetic number, because the mean of its divisors is an integer number (8226780501).

Almost surely, 2^16453561001 is an apocalyptic number.

It is an amenable number.

16453561001 is a deficient number, since it is larger than the sum of its proper divisors (1).

16453561001 is an equidigital number, since it uses as much as digits as its factorization.

16453561001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 16453561001 in words is "sixteen billion, four hundred fifty-three million, five hundred sixty-one thousand, one".