163525745359 has 4 divisors (see below), whose sum is σ = 163792509016. Its totient is φ = 163258981704.

The previous prime is 163525745321. The next prime is 163525745399. The reversal of 163525745359 is 953547525361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 953547525361 = 17449 ⋅54647689.

It is a cyclic number.

It is not a de Polignac number, because 163525745359 - 2⁷ = 163525745231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163525745309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133380909 + ... + 133382134.

It is an arithmetic number, because the mean of its divisors is an integer number (40948127254).

Almost surely, 2^163525745359 is an apocalyptic number.

163525745359 is a deficient number, since it is larger than the sum of its proper divisors (266763657).

163525745359 is an equidigital number, since it uses as much as digits as its factorization.

163525745359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266763656.

The product of its digits is 17010000, while the sum is 55.

The spelling of 163525745359 in words is "one hundred sixty-three billion, five hundred twenty-five million, seven hundred forty-five thousand, three hundred fifty-nine".