220887096257 has 2 divisors, whose sum is σ = 220887096258. Its totient is φ = 220887096256.

The previous prime is 220887096187. The next prime is 220887096259. The reversal of 220887096257 is 752690788022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123442606336 + 97444489921 = 351344^2 + 312161^2 .

It is a cyclic number.

It is not a de Polignac number, because 220887096257 - 2²⁴ = 220870319041 is a prime.

It is a super-3 number, since 3×220887096257³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 220887096259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220887096259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110443548128 + 110443548129.

It is an arithmetic number, because the mean of its divisors is an integer number (110443548129).

Almost surely, 2^220887096257 is an apocalyptic number.

It is an amenable number.

220887096257 is a deficient number, since it is larger than the sum of its proper divisors (1).

220887096257 is an equidigital number, since it uses as much as digits as its factorization.

220887096257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 220887096257 in words is "two hundred twenty billion, eight hundred eighty-seven million, ninety-six thousand, two hundred fifty-seven".