20160779973 has 16 divisors (see below), whose sum is σ = 28270657536. Its totient is φ = 12754914480.

The previous prime is 20160779941. The next prime is 20160779987. The reversal of 20160779973 is 37997706102.

It is not a de Polignac number, because 20160779973 - 2⁵ = 20160779941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20160779993) 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 15 ways as a sum of consecutive naturals, for example, 1141573 + ... + 1159098.

It is an arithmetic number, because the mean of its divisors is an integer number (1766916096).

Almost surely, 2^20160779973 is an apocalyptic number.

20160779973 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20160779973 is a deficient number, since it is larger than the sum of its proper divisors (8109877563).

20160779973 is a wasteful number, since it uses less digits than its factorization.

20160779973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300824.

The product of its (nonzero) digits is 1000188, while the sum is 51.

The spelling of 20160779973 in words is "twenty billion, one hundred sixty million, seven hundred seventy-nine thousand, nine hundred seventy-three".