16777630481 has 2 divisors, whose sum is σ = 16777630482. Its totient is φ = 16777630480.

The previous prime is 16777630469. The next prime is 16777630517. The reversal of 16777630481 is 18403677761.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13632664081 + 3144966400 = 116759^2 + 56080^2 .

It is a cyclic number.

It is not a de Polignac number, because 16777630481 - 2⁶ = 16777630417 is a prime.

It is a super-2 number, since 2×16777630481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16777630411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8388815240 + 8388815241.

It is an arithmetic number, because the mean of its divisors is an integer number (8388815241).

Almost surely, 2^16777630481 is an apocalyptic number.

It is an amenable number.

16777630481 is a deficient number, since it is larger than the sum of its proper divisors (1).

16777630481 is an equidigital number, since it uses as much as digits as its factorization.

16777630481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 16777630481 in words is "sixteen billion, seven hundred seventy-seven million, six hundred thirty thousand, four hundred eighty-one".