225679166837 has 2 divisors, whose sum is σ = 225679166838. Its totient is φ = 225679166836.

The previous prime is 225679166807. The next prime is 225679166849. The reversal of 225679166837 is 738661976522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164607906961 + 61071259876 = 405719^2 + 247126^2 .

It is a cyclic number.

It is not a de Polignac number, because 225679166837 - 2¹² = 225679162741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225679166837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225679166807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112839583418 + 112839583419.

It is an arithmetic number, because the mean of its divisors is an integer number (112839583419).

Almost surely, 2^225679166837 is an apocalyptic number.

It is an amenable number.

225679166837 is a deficient number, since it is larger than the sum of its proper divisors (1).

225679166837 is an equidigital number, since it uses as much as digits as its factorization.

225679166837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 62.

The spelling of 225679166837 in words is "two hundred twenty-five billion, six hundred seventy-nine million, one hundred sixty-six thousand, eight hundred thirty-seven".