998801601001 has 8 divisors (see below), whose sum is σ = 1058119905024. Its totient is φ = 939546104640.

The previous prime is 998801600999. The next prime is 998801601053. The reversal of 998801601001 is 100106108899.

It is a happy number.

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

It is not a de Polignac number, because 998801601001 - 2¹ = 998801600999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998801601401) 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, 15669165 + ... + 15732778.

It is an arithmetic number, because the mean of its divisors is an integer number (132264988128).

Almost surely, 2^998801601001 is an apocalyptic number.

It is an amenable number.

998801601001 is a deficient number, since it is larger than the sum of its proper divisors (59318304023).

998801601001 is a wasteful number, since it uses less digits than its factorization.

998801601001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31403831.

The product of its (nonzero) digits is 31104, while the sum is 43.

The spelling of 998801601001 in words is "nine hundred ninety-eight billion, eight hundred one million, six hundred one thousand, one".