1667676767913 has 20 divisors (see below), whose sum is σ = 2682853225668. Its totient is φ = 1026262625760.

The previous prime is 1667676767909. The next prime is 1667676767921. The reversal of 1667676767913 is 3197676767661.

It can be written as a sum of positive squares in 2 ways, for example, as 990606165264 + 677070602649 = 995292^2 + 822843^2 .

It is not a de Polignac number, because 1667676767913 - 2² = 1667676767909 is a prime.

It is a super-2 number, since 2×1667676767913² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1667676760913) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 791868258 + ... + 791870363.

Almost surely, 2^{1667676767913} is an apocalyptic number.

1667676767913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1667676767913 is a deficient number, since it is larger than the sum of its proper divisors (1015176457755).

1667676767913 is a wasteful number, since it uses less digits than its factorization.

1667676767913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583738646 (or 1583738637 counting only the distinct ones).

The product of its digits is 504094752, while the sum is 72.

The spelling of 1667676767913 in words is "one trillion, six hundred sixty-seven billion, six hundred seventy-six million, seven hundred sixty-seven thousand, nine hundred thirteen".