20075011872 has 24 divisors (see below), whose sum is σ = 52696906416. Its totient is φ = 6691670592.

The previous prime is 20075011813. The next prime is 20075011883. The reversal of 20075011872 is 27811057002.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×20075011872² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104557258 + ... + 104557449.

It is an arithmetic number, because the mean of its divisors is an integer number (2195704434).

Almost surely, 2^20075011872 is an apocalyptic number.

It is an amenable number.

20075011872 is an abundant number, since it is smaller than the sum of its proper divisors (32621894544).

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

20075011872 is a wasteful number, since it uses less digits than its factorization.

20075011872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209114720 (or 209114712 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 33.

Adding to 20075011872 its reverse (27811057002), we get a palindrome (47886068874).

The spelling of 20075011872 in words is "twenty billion, seventy-five million, eleven thousand, eight hundred seventy-two".