20275036736 has 14 divisors (see below), whose sum is σ = 40233276150. Its totient is φ = 10137518336.

The previous prime is 20275036729. The next prime is 20275036741. The reversal of 20275036736 is 63763057202.

It can be written as a sum of positive squares in only one way, i.e., 20266369600 + 8667136 = 142360^2 + 2944^2 .

It is a super-2 number, since 2×20275036736² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20275036693 and 20275036702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158398661 + ... + 158398788.

Almost surely, 2^20275036736 is an apocalyptic number.

It is an amenable number.

20275036736 is a deficient number, since it is larger than the sum of its proper divisors (19958239414).

20275036736 is an equidigital number, since it uses as much as digits as its factorization.

20275036736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316797461 (or 316797451 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 41.

The spelling of 20275036736 in words is "twenty billion, two hundred seventy-five million, thirty-six thousand, seven hundred thirty-six".