167968500253 has 2 divisors, whose sum is σ = 167968500254. Its totient is φ = 167968500252.

The previous prime is 167968500241. The next prime is 167968500307. The reversal of 167968500253 is 352005869761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108964689604 + 59003810649 = 330098^2 + 242907^2 .

It is a cyclic number.

It is not a de Polignac number, because 167968500253 - 2¹⁷ = 167968369181 is a prime.

It is a super-2 number, since 2×167968500253² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 167968500253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167968530253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83984250126 + 83984250127.

It is an arithmetic number, because the mean of its divisors is an integer number (83984250127).

Almost surely, 2^167968500253 is an apocalyptic number.

It is an amenable number.

167968500253 is a deficient number, since it is larger than the sum of its proper divisors (1).

167968500253 is an equidigital number, since it uses as much as digits as its factorization.

167968500253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 167968500253 in words is "one hundred sixty-seven billion, nine hundred sixty-eight million, five hundred thousand, two hundred fifty-three".