1996216771584 has 176 divisors, whose sum is σ = 6084764816000. Its totient is φ = 569969934336.

The previous prime is 1996216771561. The next prime is 1996216771621. The reversal of 1996216771584 is 4851776126991.

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, 33279732 + ... + 33339660.

Almost surely, 2^{1996216771584} is an apocalyptic number.

1996216771584 is a gapful number since it is divisible by the number (14) 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 1996216771584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3042382408000).

1996216771584 is an abundant number, since it is smaller than the sum of its proper divisors (4088548044416).

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

1996216771584 is a wasteful number, since it uses less digits than its factorization.

1996216771584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61508 (or 61490 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 66.

The spelling of 1996216771584 in words is "one trillion, nine hundred ninety-six billion, two hundred sixteen million, seven hundred seventy-one thousand, five hundred eighty-four".