163061423625 has 16 divisors (see below), whose sum is σ = 271334209536. Its totient is φ = 86966092400.

The previous prime is 163061423533. The next prime is 163061423713. The reversal of 163061423625 is 526324160361.

It is not a de Polignac number, because 163061423625 - 2²⁶ = 162994314761 is a prime.

It is a super-2 number, since 2×163061423625² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217414857 + ... + 217415606.

It is an arithmetic number, because the mean of its divisors is an integer number (16958388096).

Almost surely, 2^163061423625 is an apocalyptic number.

163061423625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163061423625 is a deficient number, since it is larger than the sum of its proper divisors (108272785911).

163061423625 is an equidigital number, since it uses as much as digits as its factorization.

163061423625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434830481 (or 434830471 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

Adding to 163061423625 its reverse (526324160361), we get a palindrome (689385583986).

The spelling of 163061423625 in words is "one hundred sixty-three billion, sixty-one million, four hundred twenty-three thousand, six hundred twenty-five".