16989593401 has 8 divisors (see below), whose sum is σ = 18535053600. Its totient is φ = 15444291840.

The previous prime is 16989593393. The next prime is 16989593473. The reversal of 16989593401 is 10439598961.

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 16989593401 - 2³ = 16989593393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16980593401) 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, 355590 + ... + 400528.

It is an arithmetic number, because the mean of its divisors is an integer number (2316881700).

Almost surely, 2^16989593401 is an apocalyptic number.

16989593401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16989593401 is a deficient number, since it is larger than the sum of its proper divisors (1545460199).

16989593401 is a wasteful number, since it uses less digits than its factorization.

16989593401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79319.

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 16989593401 in words is "sixteen billion, nine hundred eighty-nine million, five hundred ninety-three thousand, four hundred one".