20331985463 has 8 divisors (see below), whose sum is σ = 21091687200. Its totient is φ = 19576190368.

The previous prime is 20331985459. The next prime is 20331985489. The reversal of 20331985463 is 36458913302.

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 20331985463 - 2² = 20331985459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331985433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966056 + ... + 986877.

It is an arithmetic number, because the mean of its divisors is an integer number (2636460900).

Almost surely, 2^20331985463 is an apocalyptic number.

20331985463 is a deficient number, since it is larger than the sum of its proper divisors (759701737).

20331985463 is a wasteful number, since it uses less digits than its factorization.

20331985463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953321.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 20331985463 in words is "twenty billion, three hundred thirty-one million, nine hundred eighty-five thousand, four hundred sixty-three".