163443616413554 has 8 divisors (see below), whose sum is σ = 246535063864560. Its totient is φ = 81265261792036.

The previous prime is 163443616413481. The next prime is 163443616413563. The reversal of 163443616413554 is 455314616344361.

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

It is a self number, because there is not a number n which added to its sum of digits gives 163443616413554.

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, 228273206924 + ... + 228273207639.

It is an arithmetic number, because the mean of its divisors is an integer number (30816882983070).

Almost surely, 2^{163443616413554} is an apocalyptic number.

163443616413554 is a deficient number, since it is larger than the sum of its proper divisors (83091447451006).

163443616413554 is a wasteful number, since it uses less digits than its factorization.

163443616413554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456546414744.

The product of its digits is 37324800, while the sum is 56.

The spelling of 163443616413554 in words is "one hundred sixty-three trillion, four hundred forty-three billion, six hundred sixteen million, four hundred thirteen thousand, five hundred fifty-four".