2066806813442 has 16 divisors (see below), whose sum is σ = 3543695326080. Its totient is φ = 885624865728.

The previous prime is 2066806813417. The next prime is 2066806813481. The reversal of 2066806813442 is 2443186086602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12370967 + ... + 12536922.

It is an arithmetic number, because the mean of its divisors is an integer number (221480957880).

Almost surely, 2^{2066806813442} is an apocalyptic number.

2066806813442 is a deficient number, since it is larger than the sum of its proper divisors (1476888512638).

2066806813442 is a wasteful number, since it uses less digits than its factorization.

2066806813442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24913825.

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 2066806813442 in words is "two trillion, sixty-six billion, eight hundred six million, eight hundred thirteen thousand, four hundred forty-two".