1988055960000 has 280 divisors, whose sum is σ = 7170524997504. Its totient is φ = 481952640000.

The previous prime is 1988055959969. The next prime is 1988055960061. The reversal of 1988055960000 is 695508891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 566949 + ... + 2073051.

Almost surely, 2^{1988055960000} is an apocalyptic number.

1988055960000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1988055960000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3585262498752).

1988055960000 is an abundant number, since it is smaller than the sum of its proper divisors (5182469037504).

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

1988055960000 is a wasteful number, since it uses less digits than its factorization.

1988055960000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506149 (or 1506124 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 51.

The spelling of 1988055960000 in words is "one trillion, nine hundred eighty-eight billion, fifty-five million, nine hundred sixty thousand".