20603377344 has 224 divisors, whose sum is σ = 60548495616. Its totient is φ = 6131220480.

The previous prime is 20603377321. The next prime is 20603377397. The reversal of 20603377344 is 44377330602.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33392524 + ... + 33393140.

It is an arithmetic number, because the mean of its divisors is an integer number (270305784).

Almost surely, 2^20603377344 is an apocalyptic number.

20603377344 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 20603377344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30274247808).

20603377344 is an abundant number, since it is smaller than the sum of its proper divisors (39945118272).

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

20603377344 is a wasteful number, since it uses less digits than its factorization.

20603377344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 39.

The spelling of 20603377344 in words is "twenty billion, six hundred three million, three hundred seventy-seven thousand, three hundred forty-four".