1606001516666 has 8 divisors (see below), whose sum is σ = 2535791868480. Its totient is φ = 760737560508.

The previous prime is 1606001516663. The next prime is 1606001516671. The reversal of 1606001516666 is 6666151006061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1606001516663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21131598866 + ... + 21131598941.

It is an arithmetic number, because the mean of its divisors is an integer number (316973983560).

Almost surely, 2^{1606001516666} is an apocalyptic number.

1606001516666 is a deficient number, since it is larger than the sum of its proper divisors (929790351814).

1606001516666 is a wasteful number, since it uses less digits than its factorization.

1606001516666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42263197828.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 1606001516666 in words is "one trillion, six hundred six billion, one million, five hundred sixteen thousand, six hundred sixty-six".