216110002057 has 4 divisors (see below), whose sum is σ = 216294554896. Its totient is φ = 215925449220.

The previous prime is 216110002033. The next prime is 216110002061. The reversal of 216110002057 is 750200011612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216110002057 - 2¹¹ = 216110000009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216110002067) 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, 92274663 + ... + 92277004.

It is an arithmetic number, because the mean of its divisors is an integer number (54073638724).

Almost surely, 2^216110002057 is an apocalyptic number.

It is an amenable number.

216110002057 is a deficient number, since it is larger than the sum of its proper divisors (184552839).

216110002057 is a wasteful number, since it uses less digits than its factorization.

216110002057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184552838.

The product of its (nonzero) digits is 840, while the sum is 25.

Adding to 216110002057 its reverse (750200011612), we get a palindrome (966310013669).

The spelling of 216110002057 in words is "two hundred sixteen billion, one hundred ten million, two thousand, fifty-seven".