20075312650 has 12 divisors (see below), whose sum is σ = 37340081622. Its totient is φ = 8030125040.

The previous prime is 20075312639. The next prime is 20075312689. The reversal of 20075312650 is 5621357002.

It can be written as a sum of positive squares in 3 ways, for example, as 14840356041 + 5234956609 = 121821^2 + 72353^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200753077 + ... + 200753176.

Almost surely, 2^20075312650 is an apocalyptic number.

20075312650 is a deficient number, since it is larger than the sum of its proper divisors (17264768972).

20075312650 is a wasteful number, since it uses less digits than its factorization.

20075312650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401506265 (or 401506260 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

Adding to 20075312650 its reverse (5621357002), we get a palindrome (25696669652).

The spelling of 20075312650 in words is "twenty billion, seventy-five million, three hundred twelve thousand, six hundred fifty".