1676684167668 has 36 divisors (see below), whose sum is σ = 4238325548548. Its totient is φ = 558889372800.

The previous prime is 1676684167607. The next prime is 1676684167681. The reversal of 1676684167668 is 8667614866761.

1676684167668 is a `hidden beast` number, since 16 + 76 + 6 + 8 + 416 + 76 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1198735937424 + 477948230244 = 1094868^2 + 691338^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1676684167668² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1676684167596 and 1676684167605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5876718 + ... + 6155418.

Almost surely, 2^{1676684167668} is an apocalyptic number.

1676684167668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1676684167668 is an abundant number, since it is smaller than the sum of its proper divisors (2561641380880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1676684167668 is a wasteful number, since it uses less digits than its factorization.

1676684167668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445824 (or 445819 counting only the distinct ones).

The product of its digits is 585252864, while the sum is 72.

The spelling of 1676684167668 in words is "one trillion, six hundred seventy-six billion, six hundred eighty-four million, one hundred sixty-seven thousand, six hundred sixty-eight".