16613282077 has 18 divisors (see below), whose sum is σ = 19443669342. Its totient is φ = 14153522544.

The previous prime is 16613282047. The next prime is 16613282083. The reversal of 16613282077 is 77028231661.

It can be written as a sum of positive squares in only one way, i.e., 10107085156 + 6506196921 = 100534^2 + 80661^2 .

It is not a de Polignac number, because 16613282077 - 2¹⁹ = 16612757789 is a prime.

It is a super-2 number, since 2×16613282077² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16613282047) 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 in 17 ways as a sum of consecutive naturals, for example, 1360483 + ... + 1372639.

Almost surely, 2^16613282077 is an apocalyptic number.

It is an amenable number.

16613282077 is a deficient number, since it is larger than the sum of its proper divisors (2830387265).

16613282077 is an equidigital number, since it uses as much as digits as its factorization.

16613282077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12505 (or 12331 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 16613282077 in words is "sixteen billion, six hundred thirteen million, two hundred eighty-two thousand, seventy-seven".