20667535167 has 8 divisors (see below), whose sum is σ = 27645321600. Its totient is φ = 13734052760.

The previous prime is 20667535157. The next prime is 20667535169. The reversal of 20667535167 is 76153576602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20667535167 - 2¹⁶ = 20667469631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20667535169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11074917 + ... + 11076782.

It is an arithmetic number, because the mean of its divisors is an integer number (3455665200).

Almost surely, 2^20667535167 is an apocalyptic number.

20667535167 is a deficient number, since it is larger than the sum of its proper divisors (6977786433).

20667535167 is a wasteful number, since it uses less digits than its factorization.

20667535167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22152013.

The product of its (nonzero) digits is 1587600, while the sum is 48.

The spelling of 20667535167 in words is "twenty billion, six hundred sixty-seven million, five hundred thirty-five thousand, one hundred sixty-seven".