20732605211 has 4 divisors (see below), whose sum is σ = 20859799272. Its totient is φ = 20605411152.

The previous prime is 20732605189. The next prime is 20732605217. The reversal of 20732605211 is 11250623702.

It is a happy number.

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 20732605211 - 2⁶ = 20732605147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20732605217) 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, 63596786 + ... + 63597111.

It is an arithmetic number, because the mean of its divisors is an integer number (5214949818).

Almost surely, 2^20732605211 is an apocalyptic number.

20732605211 is a deficient number, since it is larger than the sum of its proper divisors (127194061).

20732605211 is a wasteful number, since it uses less digits than its factorization.

20732605211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127194060.

The product of its (nonzero) digits is 5040, while the sum is 29.

The spelling of 20732605211 in words is "twenty billion, seven hundred thirty-two million, six hundred five thousand, two hundred eleven".