20203822516 has 24 divisors (see below), whose sum is σ = 37949332680. Its totient is φ = 9377436672.

The previous prime is 20203822481. The next prime is 20203822571. The reversal of 20203822516 is 61522830202.

It can be written as a sum of positive squares in 4 ways, for example, as 718454416 + 19485368100 = 26804^2 + 139590^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2030071 + ... + 2039998.

It is an arithmetic number, because the mean of its divisors is an integer number (1581222195).

Almost surely, 2^20203822516 is an apocalyptic number.

It is an amenable number.

20203822516 is a deficient number, since it is larger than the sum of its proper divisors (17745510164).

20203822516 is a wasteful number, since it uses less digits than its factorization.

20203822516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070163 (or 4070161 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 20203822516 in words is "twenty billion, two hundred three million, eight hundred twenty-two thousand, five hundred sixteen".