16677622677661 has 32 divisors (see below), whose sum is σ = 18721683187200. Its totient is φ = 14724977472000.

The previous prime is 16677622677539. The next prime is 16677622677679.

16677622677661 is nontrivially palindromic in base 10.

16677622677661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16677622677661 - 2¹⁹ = 16677622153373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16677622677161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150154095 + ... + 150265123.

It is an arithmetic number, because the mean of its divisors is an integer number (585052599600).

Almost surely, 2^{16677622677661} is an apocalyptic number.

16677622677661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16677622677661 is a deficient number, since it is larger than the sum of its proper divisors (2044060509539).

16677622677661 is a wasteful number, since it uses less digits than its factorization.

16677622677661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112581.

The product of its digits is 448084224, while the sum is 70.

The spelling of 16677622677661 in words is "sixteen trillion, six hundred seventy-seven billion, six hundred twenty-two million, six hundred seventy-seven thousand, six hundred sixty-one".