20216378903 has 32 divisors (see below), whose sum is σ = 25184332800. Its totient is φ = 15830567424.

The previous prime is 20216378891. The next prime is 20216378951. The reversal of 20216378903 is 30987361202.

It is not a de Polignac number, because 20216378903 - 2¹⁸ = 20216116759 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 (20216375903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1927688 + ... + 1938146.

It is an arithmetic number, because the mean of its divisors is an integer number (787010400).

Almost surely, 2^20216378903 is an apocalyptic number.

20216378903 is a deficient number, since it is larger than the sum of its proper divisors (4967953897).

20216378903 is a wasteful number, since it uses less digits than its factorization.

20216378903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10959.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 20216378903 in words is "twenty billion, two hundred sixteen million, three hundred seventy-eight thousand, nine hundred three".