20216768502 has 16 divisors (see below), whose sum is σ = 46209756672. Its totient is φ = 5776219560.

The previous prime is 20216768483. The next prime is 20216768503. The reversal of 20216768502 is 20586761202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20216768503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240675774 + ... + 240675857.

It is an arithmetic number, because the mean of its divisors is an integer number (2888109792).

Almost surely, 2^20216768502 is an apocalyptic number.

20216768502 is an abundant number, since it is smaller than the sum of its proper divisors (25992988170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20216768502 is a wasteful number, since it uses less digits than its factorization.

20216768502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481351643.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 20216768502 in words is "twenty billion, two hundred sixteen million, seven hundred sixty-eight thousand, five hundred two".