20558272967 has 4 divisors (see below), whose sum is σ = 20665908096. Its totient is φ = 20450637840.

The previous prime is 20558272951. The next prime is 20558272997. The reversal of 20558272967 is 76927285502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20558272967 - 2⁴ = 20558272951 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 (20558272997) 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 3 ways as a sum of consecutive naturals, for example, 53817278 + ... + 53817659.

It is an arithmetic number, because the mean of its divisors is an integer number (5166477024).

Almost surely, 2^20558272967 is an apocalyptic number.

20558272967 is a deficient number, since it is larger than the sum of its proper divisors (107635129).

20558272967 is a wasteful number, since it uses less digits than its factorization.

20558272967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107635128.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 20558272967 in words is "twenty billion, five hundred fifty-eight million, two hundred seventy-two thousand, nine hundred sixty-seven".