20303216635777 has 8 divisors (see below), whose sum is σ = 21067995516480. Its totient is φ = 19551738257520.

The previous prime is 20303216635771. The next prime is 20303216635847. The reversal of 20303216635777 is 77753661230302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20303216635777 - 2⁷ = 20303216635649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20303216635771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3325122502 + ... + 3325128607.

It is an arithmetic number, because the mean of its divisors is an integer number (2633499439560).

Almost surely, 2^{20303216635777} is an apocalyptic number.

It is an amenable number.

20303216635777 is a deficient number, since it is larger than the sum of its proper divisors (764778880703).

20303216635777 is an equidigital number, since it uses as much as digits as its factorization.

20303216635777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6650251223.

The product of its (nonzero) digits is 6667920, while the sum is 52.

The spelling of 20303216635777 in words is "twenty trillion, three hundred three billion, two hundred sixteen million, six hundred thirty-five thousand, seven hundred seventy-seven".