20927278257316 has 12 divisors (see below), whose sum is σ = 36965005520688. Its totient is φ = 10365848108552.

The previous prime is 20927278257271. The next prime is 20927278257317. The reversal of 20927278257316 is 61375287272902.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20927278257317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24447754546 + ... + 24447755401.

It is an arithmetic number, because the mean of its divisors is an integer number (3080417126724).

Almost surely, 2^{20927278257316} is an apocalyptic number.

It is an amenable number.

20927278257316 is a deficient number, since it is larger than the sum of its proper divisors (16037727263372).

20927278257316 is a wasteful number, since it uses less digits than its factorization.

20927278257316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48895510058 (or 48895510056 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 20927278257316 in words is "twenty trillion, nine hundred twenty-seven billion, two hundred seventy-eight million, two hundred fifty-seven thousand, three hundred sixteen".