16677436261 has 16 divisors (see below), whose sum is σ = 17489001600. Its totient is φ = 15882276928.

The previous prime is 16677436247. The next prime is 16677436283. The reversal of 16677436261 is 16263477661.

It is a cyclic number.

It is not a de Polignac number, because 16677436261 - 2¹⁷ = 16677305189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16677436201) 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 15 ways as a sum of consecutive naturals, for example, 1551975 + ... + 1562683.

It is an arithmetic number, because the mean of its divisors is an integer number (1093062600).

Almost surely, 2^16677436261 is an apocalyptic number.

It is an amenable number.

16677436261 is a deficient number, since it is larger than the sum of its proper divisors (811565339).

16677436261 is a wasteful number, since it uses less digits than its factorization.

16677436261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11468.

The product of its digits is 1524096, while the sum is 49.

The spelling of 16677436261 in words is "sixteen billion, six hundred seventy-seven million, four hundred thirty-six thousand, two hundred sixty-one".