20045560260 has 192 divisors, whose sum is σ = 62814495744. Its totient is φ = 4734374400.

The previous prime is 20045560229. The next prime is 20045560267. The reversal of 20045560260 is 6206554002.

It is a super-2 number, since 2×20045560260² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (20045560267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16204362 + ... + 16205598.

It is an arithmetic number, because the mean of its divisors is an integer number (327158832).

Almost surely, 2^20045560260 is an apocalyptic number.

20045560260 is a gapful number since it is divisible by the number (20) 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 20045560260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31407247872).

20045560260 is an abundant number, since it is smaller than the sum of its proper divisors (42768935484).

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

20045560260 is a wasteful number, since it uses less digits than its factorization.

20045560260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874 (or 1872 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 20045560260 in words is "twenty billion, forty-five million, five hundred sixty thousand, two hundred sixty".