20430716776 has 32 divisors (see below), whose sum is σ = 38442119040. Its totient is φ = 10179531648.

The previous prime is 20430716771. The next prime is 20430716783. The reversal of 20430716776 is 67761703402.

It is a super-2 number, since 2×20430716776² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20430716771) 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, 5949556 + ... + 5952988.

It is an arithmetic number, because the mean of its divisors is an integer number (1201316220).

Almost surely, 2^20430716776 is an apocalyptic number.

It is an amenable number.

20430716776 is a deficient number, since it is larger than the sum of its proper divisors (18011402264).

20430716776 is a wasteful number, since it uses less digits than its factorization.

20430716776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5833 (or 5829 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 20430716776 in words is "twenty billion, four hundred thirty million, seven hundred sixteen thousand, seven hundred seventy-six".