1996492140720 has 1920 divisors, whose sum is σ = 9323835236352. Its totient is φ = 384296140800.

The previous prime is 1996492140679. The next prime is 1996492140763. The reversal of 1996492140720 is 270412946991.

1996492140720 is a `hidden beast` number, since 1 + 9 + 9 + 6 + 492 + 140 + 7 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 383 ways as a sum of consecutive naturals, for example, 1704945735 + ... + 1704946905.

Almost surely, 2^{1996492140720} is an apocalyptic number.

1996492140720 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 1996492140720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4661917618176).

1996492140720 is an abundant number, since it is smaller than the sum of its proper divisors (7327343095632).

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

1996492140720 is a wasteful number, since it uses less digits than its factorization.

1996492140720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301 (or 1283 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 1996492140720 in words is "one trillion, nine hundred ninety-six billion, four hundred ninety-two million, one hundred forty thousand, seven hundred twenty".