20303620944 has 120 divisors (see below), whose sum is σ = 56315166432. Its totient is φ = 6298364160.

The previous prime is 20303620943. The next prime is 20303620949. The reversal of 20303620944 is 44902630302.

It is a super-2 number, since 2×20303620944² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303620943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 928699 + ... + 950309.

Almost surely, 2^20303620944 is an apocalyptic number.

20303620944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20303620944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28157583216).

20303620944 is an abundant number, since it is smaller than the sum of its proper divisors (36011545488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20303620944 is a wasteful number, since it uses less digits than its factorization.

20303620944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21705 (or 21676 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The spelling of 20303620944 in words is "twenty billion, three hundred three million, six hundred twenty thousand, nine hundred forty-four".