20820905014 has 32 divisors (see below), whose sum is σ = 40461684480. Its totient is φ = 7803322272.

The previous prime is 20820905011. The next prime is 20820905081. The reversal of 20820905014 is 41050902802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20820905011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3007084 + ... + 3013999.

It is an arithmetic number, because the mean of its divisors is an integer number (1264427640).

Almost surely, 2^20820905014 is an apocalyptic number.

20820905014 is a deficient number, since it is larger than the sum of its proper divisors (19640779466).

20820905014 is a wasteful number, since it uses less digits than its factorization.

20820905014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6021124.

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 20820905014 in words is "twenty billion, eight hundred twenty million, nine hundred five thousand, fourteen".