1667907117 has 12 divisors (see below), whose sum is σ = 2423981664. Its totient is φ = 1105115400.

The previous prime is 1667907097. The next prime is 1667907121. The reversal of 1667907117 is 7117097661.

It is not a de Polignac number, because 1667907117 - 2¹¹ = 1667905069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1667907517) by changing a digit.

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, 567009 + ... + 569942.

It is an arithmetic number, because the mean of its divisors is an integer number (201998472).

Almost surely, 2^1667907117 is an apocalyptic number.

It is an amenable number.

1667907117 is a deficient number, since it is larger than the sum of its proper divisors (756074547).

1667907117 is a wasteful number, since it uses less digits than its factorization.

1667907117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137120 (or 1137117 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 45.

The square root of 1667907117 is about 40840.0185724737. The cubic root of 1667907117 is about 1185.9251718518.

The spelling of 1667907117 in words is "one billion, six hundred sixty-seven million, nine hundred seven thousand, one hundred seventeen".