20616211002 has 16 divisors (see below), whose sum is σ = 41284166112. Its totient is φ = 6863446320.

The previous prime is 20616210961. The next prime is 20616211013. The reversal of 20616211002 is 20011261602.

It is a self number, because there is not a number n which added to its sum of digits gives 20616211002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2150824 + ... + 2160387.

It is an arithmetic number, because the mean of its divisors is an integer number (2580260382).

Almost surely, 2^20616211002 is an apocalyptic number.

20616211002 is an abundant number, since it is smaller than the sum of its proper divisors (20667955110).

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

20616211002 is a wasteful number, since it uses less digits than its factorization.

20616211002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312013.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20616211002 its reverse (20011261602), we get a palindrome (40627472604).

The spelling of 20616211002 in words is "twenty billion, six hundred sixteen million, two hundred eleven thousand, two".