168290293825 has 12 divisors (see below), whose sum is σ = 208898965548. Its totient is φ = 134490944000.

The previous prime is 168290293771. The next prime is 168290293837. The reversal of 168290293825 is 528392092861.

It is a Cunningham number, because it is equal to 410232²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 1 + 168290293824 = 1^2 + 410232^2 .

It is not a de Polignac number, because 168290293825 - 2¹¹ = 168290291777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3507976 + ... + 3555625.

It is an arithmetic number, because the mean of its divisors is an integer number (17408247129).

Almost surely, 2^168290293825 is an apocalyptic number.

It is an amenable number.

168290293825 is a deficient number, since it is larger than the sum of its proper divisors (40608671723).

168290293825 is an equidigital number, since it uses as much as digits as its factorization.

168290293825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7064564 (or 7064559 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 168290293825 in words is "one hundred sixty-eight billion, two hundred ninety million, two hundred ninety-three thousand, eight hundred twenty-five".