20000511005002 has 16 divisors (see below), whose sum is σ = 32728862112192. Its totient is φ = 9090932145120.

The previous prime is 20000511004987. The next prime is 20000511005071. The reversal of 20000511005002 is 20050011500002.

It is a super-2 number, since 2×20000511005002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9481323 + ... + 11397214.

It is an arithmetic number, because the mean of its divisors is an integer number (2045553882012).

Almost surely, 2^{20000511005002} is an apocalyptic number.

20000511005002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20000511005002 is a deficient number, since it is larger than the sum of its proper divisors (12728351107190).

20000511005002 is a wasteful number, since it uses less digits than its factorization.

20000511005002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20922093.

The product of its (nonzero) digits is 100, while the sum is 16.

Adding to 20000511005002 its reverse (20050011500002), we get a palindrome (40050522505004).

The spelling of 20000511005002 in words is "twenty trillion, five hundred eleven million, five thousand, two".