163606254662553 has 8 divisors (see below), whose sum is σ = 227626093443648. Its totient is φ = 104328626161584.

The previous prime is 163606254662551. The next prime is 163606254662573. The reversal of 163606254662553 is 355266452606361.

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

It is not a de Polignac number, because 163606254662553 - 2¹ = 163606254662551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163606254662551) 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, 1185552569950 + ... + 1185552570087.

It is an arithmetic number, because the mean of its divisors is an integer number (28453261680456).

Almost surely, 2^{163606254662553} is an apocalyptic number.

It is an amenable number.

163606254662553 is a deficient number, since it is larger than the sum of its proper divisors (64019838781095).

163606254662553 is a wasteful number, since it uses less digits than its factorization.

163606254662553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371105140063.

The product of its (nonzero) digits is 139968000, while the sum is 60.

The spelling of 163606254662553 in words is "one hundred sixty-three trillion, six hundred six billion, two hundred fifty-four million, six hundred sixty-two thousand, five hundred fifty-three".