163552352506 has 8 divisors (see below), whose sum is σ = 259759618740. Its totient is φ = 76965812928.

The previous prime is 163552352471. The next prime is 163552352521. The reversal of 163552352506 is 605253255361.

It can be written as a sum of positive squares in 2 ways, for example, as 125451264481 + 38101088025 = 354191^2 + 195195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2405181621 + ... + 2405181688.

Almost surely, 2^163552352506 is an apocalyptic number.

163552352506 is a deficient number, since it is larger than the sum of its proper divisors (96207266234).

163552352506 is a wasteful number, since it uses less digits than its factorization.

163552352506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810363328.

The product of its (nonzero) digits is 810000, while the sum is 43.

The spelling of 163552352506 in words is "one hundred sixty-three billion, five hundred fifty-two million, three hundred fifty-two thousand, five hundred six".