228559661597 has 2 divisors, whose sum is σ = 228559661598. Its totient is φ = 228559661596.

The previous prime is 228559661557. The next prime is 228559661621. The reversal of 228559661597 is 795166955822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217031129956 + 11528531641 = 465866^2 + 107371^2 .

It is a cyclic number.

It is not a de Polignac number, because 228559661597 - 2²² = 228555467293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228559661527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114279830798 + 114279830799.

It is an arithmetic number, because the mean of its divisors is an integer number (114279830799).

Almost surely, 2^228559661597 is an apocalyptic number.

It is an amenable number.

228559661597 is a deficient number, since it is larger than the sum of its proper divisors (1).

228559661597 is an equidigital number, since it uses as much as digits as its factorization.

228559661597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648000, while the sum is 65.

The spelling of 228559661597 in words is "two hundred twenty-eight billion, five hundred fifty-nine million, six hundred sixty-one thousand, five hundred ninety-seven".