20039622511 has 4 divisors (see below), whose sum is σ = 20040139800. Its totient is φ = 20039105224.

The previous prime is 20039622451. The next prime is 20039622569. The reversal of 20039622511 is 11522693002.

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 20039622511 - 2¹¹ = 20039620463 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 (20039632511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195376 + ... + 279733.

It is an arithmetic number, because the mean of its divisors is an integer number (5010034950).

Almost surely, 2^20039622511 is an apocalyptic number.

20039622511 is a deficient number, since it is larger than the sum of its proper divisors (517289).

20039622511 is an equidigital number, since it uses as much as digits as its factorization.

20039622511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517288.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 20039622511 in words is "twenty billion, thirty-nine million, six hundred twenty-two thousand, five hundred eleven".