1667685116 has 6 divisors (see below), whose sum is σ = 2918448960. Its totient is φ = 833842556.

The previous prime is 1667685113. The next prime is 1667685139. The reversal of 1667685116 is 6115867661.

It is a super-2 number, since 2×1667685116² = 5562347292255866912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1667685113) 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 as a sum of consecutive naturals, namely, 208460636 + ... + 208460643.

It is an arithmetic number, because the mean of its divisors is an integer number (486408160).

Almost surely, 2^1667685116 is an apocalyptic number.

It is an amenable number.

1667685116 is a deficient number, since it is larger than the sum of its proper divisors (1250763844).

1667685116 is a wasteful number, since it uses less digits than its factorization.

1667685116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416921283 (or 416921281 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The square root of 1667685116 is about 40837.3005474162. The cubic root of 1667685116 is about 1185.8725533630.

The spelling of 1667685116 in words is "one billion, six hundred sixty-seven million, six hundred eighty-five thousand, one hundred sixteen".