20436851206 has 16 divisors (see below), whose sum is σ = 32497727040. Its totient is φ = 9605727360.

The previous prime is 20436851191. The next prime is 20436851207. The reversal of 20436851206 is 60215863402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20436851207) 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, 334350 + ... + 390721.

It is an arithmetic number, because the mean of its divisors is an integer number (2031107940).

Almost surely, 2^20436851206 is an apocalyptic number.

20436851206 is a deficient number, since it is larger than the sum of its proper divisors (12060875834).

20436851206 is a wasteful number, since it uses less digits than its factorization.

20436851206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725919.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 20436851206 in words is "twenty billion, four hundred thirty-six million, eight hundred fifty-one thousand, two hundred six".