163005643153645 has 8 divisors (see below), whose sum is σ = 197434872455904. Its totient is φ = 129185780741904.

The previous prime is 163005643153637. The next prime is 163005643153663. The reversal of 163005643153645 is 546351346500361.

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

It is a cyclic number.

It is not a de Polignac number, because 163005643153645 - 2³ = 163005643153637 is a prime.

It is a super-3 number, since 3×163005643153645³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163005643153592 and 163005643153601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152341722039 + ... + 152341723108.

It is an arithmetic number, because the mean of its divisors is an integer number (24679359056988).

Almost surely, 2^{163005643153645} is an apocalyptic number.

It is an amenable number.

163005643153645 is a deficient number, since it is larger than the sum of its proper divisors (34429229302259).

163005643153645 is a wasteful number, since it uses less digits than its factorization.

163005643153645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304683445259.

The product of its (nonzero) digits is 11664000, while the sum is 52.

The spelling of 163005643153645 in words is "one hundred sixty-three trillion, five billion, six hundred forty-three million, one hundred fifty-three thousand, six hundred forty-five".