20261200004 has 12 divisors (see below), whose sum is σ = 35458850700. Its totient is φ = 10130099808.

The previous prime is 20261199991. The next prime is 20261200039. The reversal of 20261200004 is 40000216202.

It can be written as a sum of positive squares in 2 ways, for example, as 2412774400 + 17848425604 = 49120^2 + 133598^2 .

It is a super-3 number, since 3×20261200004³ (a number of 32 digits) contains 333 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, 25019 + ... + 202850.

It is an arithmetic number, because the mean of its divisors is an integer number (2954904225).

Almost surely, 2^20261200004 is an apocalyptic number.

It is an amenable number.

20261200004 is a deficient number, since it is larger than the sum of its proper divisors (15197650696).

20261200004 is a wasteful number, since it uses less digits than its factorization.

20261200004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250102 (or 250100 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20261200004 its reverse (40000216202), we get a palindrome (60261416206).

The spelling of 20261200004 in words is "twenty billion, two hundred sixty-one million, two hundred thousand, four".