20793977167 has 8 divisors (see below), whose sum is σ = 21504444032. Its totient is φ = 20085991200.

The previous prime is 20793977147. The next prime is 20793977173. The reversal of 20793977167 is 76177939702.

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

It is a de Polignac number, because none of the positive numbers 2^k-20793977167 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 (20793977137) 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, 603168 + ... + 636709.

It is an arithmetic number, because the mean of its divisors is an integer number (2688055504).

Almost surely, 2^20793977167 is an apocalyptic number.

20793977167 is a deficient number, since it is larger than the sum of its proper divisors (710466865).

20793977167 is a wasteful number, since it uses less digits than its factorization.

20793977167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240449.

The product of its (nonzero) digits is 7001316, while the sum is 58.

The spelling of 20793977167 in words is "twenty billion, seven hundred ninety-three million, nine hundred seventy-seven thousand, one hundred sixty-seven".