2066066602440 has 64 divisors (see below), whose sum is σ = 6243442191360. Its totient is φ = 546929548800.

The previous prime is 2066066602423. The next prime is 2066066602471. The reversal of 2066066602440 is 442066606602.

It is a junction number, because it is equal to n+sod(n) for n = 2066066602392 and 2066066602401.

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 15 ways as a sum of consecutive naturals, for example, 62820136 + ... + 62853015.

It is an arithmetic number, because the mean of its divisors is an integer number (97553784240).

Almost surely, 2^{2066066602440} is an apocalyptic number.

2066066602440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2066066602440 is an abundant number, since it is smaller than the sum of its proper divisors (4177375588920).

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

2066066602440 is a wasteful number, since it uses less digits than its factorization.

2066066602440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125673302 (or 125673298 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 2066066602440 in words is "two trillion, sixty-six billion, sixty-six million, six hundred two thousand, four hundred forty".