1998116153 has 16 divisors (see below), whose sum is σ = 2259696960. Its totient is φ = 1750123200.

The previous prime is 1998116149. The next prime is 1998116161. The reversal of 1998116153 is 3516118991.

It is a cyclic number.

It is not a de Polignac number, because 1998116153 - 2² = 1998116149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1998116173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150251 + ... + 163007.

It is an arithmetic number, because the mean of its divisors is an integer number (141231060).

Almost surely, 2^1998116153 is an apocalyptic number.

It is an amenable number.

1998116153 is a deficient number, since it is larger than the sum of its proper divisors (261580807).

1998116153 is a wasteful number, since it uses less digits than its factorization.

1998116153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13288.

The product of its digits is 58320, while the sum is 44.

The square root of 1998116153 is about 44700.2925381926. The cubic root of 1998116153 is about 1259.5253425452.

The spelling of 1998116153 in words is "one billion, nine hundred ninety-eight million, one hundred sixteen thousand, one hundred fifty-three".