20015522345300 has 72 divisors (see below), whose sum is σ = 45017640795960. Its totient is φ = 7715295078400.

The previous prime is 20015522345257. The next prime is 20015522345321. The reversal of 20015522345300 is 354322551002.

It can be written as a sum of positive squares in 12 ways, for example, as 7288423285264 + 12727099060036 = 2699708^2 + 3567506^2 .

It is a super-2 number, since 2×20015522345300² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5112809 + ... + 8134608.

It is an arithmetic number, because the mean of its divisors is an integer number (625245011055).

Almost surely, 2^{20015522345300} is an apocalyptic number.

20015522345300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20015522345300 is an abundant number, since it is smaller than the sum of its proper divisors (25002118450660).

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

20015522345300 is a wasteful number, since it uses less digits than its factorization.

20015522345300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13247981 (or 13247974 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 20015522345300 its reverse (354322551002), we get a palindrome (20369844896302).

The spelling of 20015522345300 in words is "twenty trillion, fifteen billion, five hundred twenty-two million, three hundred forty-five thousand, three hundred".