20045543310 has 192 divisors, whose sum is σ = 58338907200. Its totient is φ = 4868957952.

The previous prime is 20045543263. The next prime is 20045543333. The reversal of 20045543310 is 1334554002.

20045543310 is a `hidden beast` number, since 200 + 455 + 4 + 3 + 3 + 1 + 0 = 666.

It is a super-2 number, since 2×20045543310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24179976 + ... + 24180804.

It is an arithmetic number, because the mean of its divisors is an integer number (303848475).

Almost surely, 2^20045543310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20045543310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29169453600).

20045543310 is an abundant number, since it is smaller than the sum of its proper divisors (38293363890).

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

20045543310 is a wasteful number, since it uses less digits than its factorization.

20045543310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The spelling of 20045543310 in words is "twenty billion, forty-five million, five hundred forty-three thousand, three hundred ten".