1600821040020 has 48 divisors (see below), whose sum is σ = 4482354397248. Its totient is φ = 426880326400.

The previous prime is 1600821039973. The next prime is 1600821040037. The reversal of 1600821040020 is 200401280061.

It is a congruent number.

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, 8357320 + ... + 8546720.

It is an arithmetic number, because the mean of its divisors is an integer number (93382383276).

Almost surely, 2^{1600821040020} is an apocalyptic number.

1600821040020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1600821040020 is an abundant number, since it is smaller than the sum of its proper divisors (2881533357228).

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

1600821040020 is a wasteful number, since it uses less digits than its factorization.

1600821040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330280 (or 330278 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 1600821040020 in words is "one trillion, six hundred billion, eight hundred twenty-one million, forty thousand, twenty".