16682359574661 has 16 divisors (see below), whose sum is σ = 25320261173760. Its totient is φ = 9670933086320.

The previous prime is 16682359574659. The next prime is 16682359574711. The reversal of 16682359574661 is 16647595328661.

It is not a de Polignac number, because 16682359574661 - 2¹ = 16682359574659 is a prime.

It is a super-2 number, since 2×16682359574661² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16682359534661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10989695931 + ... + 10989697448.

It is an arithmetic number, because the mean of its divisors is an integer number (1582516323360).

Almost surely, 2^{16682359574661} is an apocalyptic number.

16682359574661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16682359574661 is a deficient number, since it is larger than the sum of its proper divisors (8637901599099).

16682359574661 is a wasteful number, since it uses less digits than its factorization.

16682359574661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21979393416.

The product of its digits is 391910400, while the sum is 69.

The spelling of 16682359574661 in words is "sixteen trillion, six hundred eighty-two billion, three hundred fifty-nine million, five hundred seventy-four thousand, six hundred sixty-one".