20316030788 has 6 divisors (see below), whose sum is σ = 35553053886. Its totient is φ = 10158015392.

The previous prime is 20316030769. The next prime is 20316030797. The reversal of 20316030788 is 88703061302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20204348164 + 111682624 = 142142^2 + 10568^2 .

It is a super-2 number, since 2×20316030788² (a number of 21 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 2539503845 + ... + 2539503852.

It is an arithmetic number, because the mean of its divisors is an integer number (5925508981).

Almost surely, 2^20316030788 is an apocalyptic number.

It is an amenable number.

20316030788 is a deficient number, since it is larger than the sum of its proper divisors (15237023098).

20316030788 is a wasteful number, since it uses less digits than its factorization.

20316030788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5079007701 (or 5079007699 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 20316030788 in words is "twenty billion, three hundred sixteen million, thirty thousand, seven hundred eighty-eight".