18702020020167 has 36 divisors (see below), whose sum is σ = 29727674714920. Its totient is φ = 11321361960480.

The previous prime is 18702020020141. The next prime is 18702020020199. The reversal of 18702020020167 is 76102002020781.

It is not a de Polignac number, because 18702020020167 - 2¹⁴ = 18702020003783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18702020820167) 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 in 35 ways as a sum of consecutive naturals, for example, 9060808 + ... + 10931709.

Almost surely, 2^{18702020020167} is an apocalyptic number.

18702020020167 is a deficient number, since it is larger than the sum of its proper divisors (11025654694753).

18702020020167 is a wasteful number, since it uses less digits than its factorization.

18702020020167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19993404 (or 19993390 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The spelling of 18702020020167 in words is "eighteen trillion, seven hundred two billion, twenty million, twenty thousand, one hundred sixty-seven".