168993008943 has 8 divisors (see below), whose sum is σ = 245808013056. Its totient is φ = 102420005400.

The previous prime is 168993008887. The next prime is 168993008953. The reversal of 168993008943 is 349800399861.

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

It is not a de Polignac number, because 168993008943 - 2²² = 168988814639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168993008953) 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, 2560500103 + ... + 2560500168.

It is an arithmetic number, because the mean of its divisors is an integer number (30726001632).

Almost surely, 2^168993008943 is an apocalyptic number.

168993008943 is a deficient number, since it is larger than the sum of its proper divisors (76815004113).

168993008943 is a wasteful number, since it uses less digits than its factorization.

168993008943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121000285.

The product of its (nonzero) digits is 10077696, while the sum is 60.

The spelling of 168993008943 in words is "one hundred sixty-eight billion, nine hundred ninety-three million, eight thousand, nine hundred forty-three".