1668365500167 has 16 divisors (see below), whose sum is σ = 2471754566880. Its totient is φ = 1112197778496.

The previous prime is 1668365500163. The next prime is 1668365500183. The reversal of 1668365500167 is 7610055638661.

1668365500167 is a `hidden beast` number, since 1 + 6 + 6 + 83 + 6 + 550 + 0 + 1 + 6 + 7 = 666.

It is not a de Polignac number, because 1668365500167 - 2² = 1668365500163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668365500163) 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, 601668 + ... + 1923209.

It is an arithmetic number, because the mean of its divisors is an integer number (154484660430).

Almost surely, 2^{1668365500167} is an apocalyptic number.

1668365500167 is a deficient number, since it is larger than the sum of its proper divisors (803389066713).

1668365500167 is a wasteful number, since it uses less digits than its factorization.

1668365500167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549359 (or 2549353 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 1668365500167 in words is "one trillion, six hundred sixty-eight billion, three hundred sixty-five million, five hundred thousand, one hundred sixty-seven".