163545342031506 has 16 divisors (see below), whose sum is σ = 327179736838944. Its totient is φ = 54500271881184.

The previous prime is 163545342031459. The next prime is 163545342031507. The reversal of 163545342031506 is 605130243545361.

It is not an unprimeable number, because it can be changed into a prime (163545342031507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3710508456 + ... + 3710552531.

It is an arithmetic number, because the mean of its divisors is an integer number (20448733552434).

Almost surely, 2^{163545342031506} is an apocalyptic number.

163545342031506 is an abundant number, since it is smaller than the sum of its proper divisors (163634394807438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163545342031506 is a wasteful number, since it uses less digits than its factorization.

163545342031506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7421064665.

The product of its (nonzero) digits is 3888000, while the sum is 48.

Adding to 163545342031506 its reverse (605130243545361), we get a palindrome (768675585576867).

The spelling of 163545342031506 in words is "one hundred sixty-three trillion, five hundred forty-five billion, three hundred forty-two million, thirty-one thousand, five hundred six".