2001700187020 has 48 divisors (see below), whose sum is σ = 4449649548960. Its totient is φ = 755092025856.

The previous prime is 2001700186987. The next prime is 2001700187023. The reversal of 2001700187020 is 207810071002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001700187020.

It is not an unprimeable number, because it can be changed into a prime (2001700187023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40105377 + ... + 40155256.

It is an arithmetic number, because the mean of its divisors is an integer number (92701032270).

Almost surely, 2^{2001700187020} is an apocalyptic number.

2001700187020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001700187020 is an abundant number, since it is smaller than the sum of its proper divisors (2447949361940).

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

2001700187020 is a wasteful number, since it uses less digits than its factorization.

2001700187020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80260714 (or 80260712 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 28.

The spelling of 2001700187020 in words is "two trillion, one billion, seven hundred million, one hundred eighty-seven thousand, twenty".