1988130199016 has 64 divisors (see below), whose sum is σ = 4060244195280. Its totient is φ = 907168204800.

The previous prime is 1988130198973. The next prime is 1988130199021. The reversal of 1988130199016 is 6109910318891.

It can be written as a sum of positive squares in 8 ways, for example, as 1547958988900 + 440171210116 = 1244170^2 + 663454^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6971420 + ... + 7250996.

Almost surely, 2^{1988130199016} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1988130199016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2030122097640).

1988130199016 is an abundant number, since it is smaller than the sum of its proper divisors (2072113996264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1988130199016 is a wasteful number, since it uses less digits than its factorization.

1988130199016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280374 (or 280370 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 56.

The spelling of 1988130199016 in words is "one trillion, nine hundred eighty-eight billion, one hundred thirty million, one hundred ninety-nine thousand, sixteen".