20002003516870 has 16 divisors (see below), whose sum is σ = 36016270330320. Its totient is φ = 7997987184544.

The previous prime is 20002003516813. The next prime is 20002003516897. The reversal of 20002003516870 is 7861530020002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 351747925 + ... + 351804784.

It is an arithmetic number, because the mean of its divisors is an integer number (2251016895645).

Almost surely, 2^{20002003516870} is an apocalyptic number.

20002003516870 is a deficient number, since it is larger than the sum of its proper divisors (16014266813450).

20002003516870 is a wasteful number, since it uses less digits than its factorization.

20002003516870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703555559.

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 20002003516870 its reverse (7861530020002), we get a palindrome (27863533536872).

The spelling of 20002003516870 in words is "twenty trillion, two billion, three million, five hundred sixteen thousand, eight hundred seventy".