20275091736 has 16 divisors (see below), whose sum is σ = 50687729400. Its totient is φ = 6758363904.

The previous prime is 20275091699. The next prime is 20275091737. The reversal of 20275091736 is 63719057202.

It is a super-2 number, since 2×20275091736² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20275091737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422397721 + ... + 422397768.

Almost surely, 2^20275091736 is an apocalyptic number.

It is an amenable number.

20275091736 is an abundant number, since it is smaller than the sum of its proper divisors (30412637664).

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

20275091736 is a wasteful number, since it uses less digits than its factorization.

20275091736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844795498 (or 844795494 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The spelling of 20275091736 in words is "twenty billion, two hundred seventy-five million, ninety-one thousand, seven hundred thirty-six".