1988017155159 has 16 divisors (see below), whose sum is σ = 3030234869760. Its totient is φ = 1135681529760.

The previous prime is 1988017155151. The next prime is 1988017155191. The reversal of 1988017155159 is 9515517108891.

It is not a de Polignac number, because 1988017155159 - 2³ = 1988017155151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988017155151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13603639 + ... + 13749000.

It is an arithmetic number, because the mean of its divisors is an integer number (189389679360).

Almost surely, 2^{1988017155159} is an apocalyptic number.

1988017155159 is a deficient number, since it is larger than the sum of its proper divisors (1042217714601).

1988017155159 is a wasteful number, since it uses less digits than its factorization.

1988017155159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27356110.

The product of its (nonzero) digits is 4536000, while the sum is 60.

The spelling of 1988017155159 in words is "one trillion, nine hundred eighty-eight billion, seventeen million, one hundred fifty-five thousand, one hundred fifty-nine".