16373634481 has 2 divisors, whose sum is σ = 16373634482. Its totient is φ = 16373634480.

The previous prime is 16373634479. The next prime is 16373634491. The reversal of 16373634481 is 18443637361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10003200256 + 6370434225 = 100016^2 + 79815^2 .

It is a cyclic number.

It is not a de Polignac number, because 16373634481 - 2¹ = 16373634479 is a prime.

It is a super-2 number, since 2×16373634481² (a number of 21 digits) contains 22 as substring.

Together with 16373634479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16373634491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8186817240 + 8186817241.

It is an arithmetic number, because the mean of its divisors is an integer number (8186817241).

Almost surely, 2^16373634481 is an apocalyptic number.

It is an amenable number.

16373634481 is a deficient number, since it is larger than the sum of its proper divisors (1).

16373634481 is an equidigital number, since it uses as much as digits as its factorization.

16373634481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 46.

The spelling of 16373634481 in words is "sixteen billion, three hundred seventy-three million, six hundred thirty-four thousand, four hundred eighty-one".