20275538368 has 28 divisors (see below), whose sum is σ = 40254712480. Its totient is φ = 10132618752.

The previous prime is 20275538333. The next prime is 20275538377. The reversal of 20275538368 is 86383557202.

It is a super-2 number, since 2×20275538368² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 48073 + ... + 207031.

Almost surely, 2^20275538368 is an apocalyptic number.

It is an amenable number.

20275538368 is a deficient number, since it is larger than the sum of its proper divisors (19979174112).

20275538368 is a wasteful number, since it uses less digits than its factorization.

20275538368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160964 (or 160954 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 20275538368 in words is "twenty billion, two hundred seventy-five million, five hundred thirty-eight thousand, three hundred sixty-eight".