20116227013257 has 16 divisors (see below), whose sum is σ = 27019911409920. Its totient is φ = 13312038859392.

The previous prime is 20116227013247. The next prime is 20116227013261. The reversal of 20116227013257 is 75231072261102.

It is not a de Polignac number, because 20116227013257 - 2¹² = 20116227009161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20116227013247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44593638 + ... + 45042479.

It is an arithmetic number, because the mean of its divisors is an integer number (1688744463120).

Almost surely, 2^{20116227013257} is an apocalyptic number.

It is an amenable number.

20116227013257 is a deficient number, since it is larger than the sum of its proper divisors (6903684396663).

20116227013257 is a wasteful number, since it uses less digits than its factorization.

20116227013257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89636672.

The product of its (nonzero) digits is 70560, while the sum is 39.

Adding to 20116227013257 its reverse (75231072261102), we get a palindrome (95347299274359).

The spelling of 20116227013257 in words is "twenty trillion, one hundred sixteen billion, two hundred twenty-seven million, thirteen thousand, two hundred fifty-seven".