16234718653 has 2 divisors, whose sum is σ = 16234718654. Its totient is φ = 16234718652.

The previous prime is 16234718603. The next prime is 16234718677. The reversal of 16234718653 is 35681743261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14085654489 + 2149064164 = 118683^2 + 46358^2 .

It is a cyclic number.

It is not a de Polignac number, because 16234718653 - 2⁹ = 16234718141 is a prime.

It is a super-2 number, since 2×16234718653² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16234718603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8117359326 + 8117359327.

It is an arithmetic number, because the mean of its divisors is an integer number (8117359327).

Almost surely, 2^16234718653 is an apocalyptic number.

It is an amenable number.

16234718653 is a deficient number, since it is larger than the sum of its proper divisors (1).

16234718653 is an equidigital number, since it uses as much as digits as its factorization.

16234718653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 46.

The spelling of 16234718653 in words is "sixteen billion, two hundred thirty-four million, seven hundred eighteen thousand, six hundred fifty-three".