1990299219020 has 48 divisors (see below), whose sum is σ = 4782318316608. Its totient is φ = 681588276480.

The previous prime is 1990299218983. The next prime is 1990299219043. The reversal of 1990299219020 is 209129920991.

It is a super-2 number, since 2×1990299219020² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8213771 + ... + 8452610.

It is an arithmetic number, because the mean of its divisors is an integer number (99631631596).

Almost surely, 2^{1990299219020} is an apocalyptic number.

1990299219020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1990299219020 is an abundant number, since it is smaller than the sum of its proper divisors (2792019097588).

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

1990299219020 is a wasteful number, since it uses less digits than its factorization.

1990299219020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16667250 (or 16667248 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 53.

The spelling of 1990299219020 in words is "one trillion, nine hundred ninety billion, two hundred ninety-nine million, two hundred nineteen thousand, twenty".