16161030493 has 2 divisors, whose sum is σ = 16161030494. Its totient is φ = 16161030492.

The previous prime is 16161030491. The next prime is 16161030539. The reversal of 16161030493 is 39403016161.

It is a happy number.

16161030493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15986314969 + 174715524 = 126437^2 + 13218^2 .

It is a cyclic number.

It is not a de Polignac number, because 16161030493 - 2¹ = 16161030491 is a prime.

It is a super-2 number, since 2×16161030493² (a number of 21 digits) contains 22 as substring.

Together with 16161030491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16161030491) 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, 8080515246 + 8080515247.

It is an arithmetic number, because the mean of its divisors is an integer number (8080515247).

Almost surely, 2^16161030493 is an apocalyptic number.

It is an amenable number.

16161030493 is a deficient number, since it is larger than the sum of its proper divisors (1).

16161030493 is an equidigital number, since it uses as much as digits as its factorization.

16161030493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 16161030493 in words is "sixteen billion, one hundred sixty-one million, thirty thousand, four hundred ninety-three".