252163612669 has 2 divisors, whose sum is σ = 252163612670. Its totient is φ = 252163612668.

The previous prime is 252163612667. The next prime is 252163612693. The reversal of 252163612669 is 966216361252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198693062500 + 53470550169 = 445750^2 + 231237^2 .

It is a cyclic number.

It is not a de Polignac number, because 252163612669 - 2¹ = 252163612667 is a prime.

It is a super-2 number, since 2×252163612669² (a number of 24 digits) contains 22 as substring.

Together with 252163612667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252163612667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126081806334 + 126081806335.

It is an arithmetic number, because the mean of its divisors is an integer number (126081806335).

Almost surely, 2^252163612669 is an apocalyptic number.

It is an amenable number.

252163612669 is a deficient number, since it is larger than the sum of its proper divisors (1).

252163612669 is an equidigital number, since it uses as much as digits as its factorization.

252163612669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 49.

The spelling of 252163612669 in words is "two hundred fifty-two billion, one hundred sixty-three million, six hundred twelve thousand, six hundred sixty-nine".