2000023000066 has 64 divisors (see below), whose sum is σ = 3853517068800. Its totient is φ = 756693374976.

The previous prime is 2000023000009. The next prime is 2000023000127. The reversal of 2000023000066 is 6600003200002.

2000023000066 is a nontrivial binomial coefficient, being equal to C(2000012, 2).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27964440 + ... + 28035868.

It is an arithmetic number, because the mean of its divisors is an integer number (60211204200).

Almost surely, 2^{2000023000066} is an apocalyptic number.

2000023000066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2000023000066 is the 2000011-st triangular number and also the 1000006-th hexagonal number.

2000023000066 is the 666671-st centered nonagonal number.

2000023000066 is a deficient number, since it is larger than the sum of its proper divisors (1853494068734).

2000023000066 is a wasteful number, since it uses less digits than its factorization.

2000023000066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78163.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 2000023000066 its reverse (6600003200002), we get a palindrome (8600026200068).

The spelling of 2000023000066 in words is "two trillion, twenty-three million, sixty-six", and thus it is an aban number and an uban number.