1666436593073 has 8 divisors (see below), whose sum is σ = 1950950158080. Its totient is φ = 1393535826720.

The previous prime is 1666436593067. The next prime is 1666436593097. The reversal of 1666436593073 is 3703956346661.

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

It is a cyclic number.

It is not a de Polignac number, because 1666436593073 - 2⁶ = 1666436593009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1666436593373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2903199353 + ... + 2903199926.

It is an arithmetic number, because the mean of its divisors is an integer number (243868769760).

Almost surely, 2^{1666436593073} is an apocalyptic number.

It is an amenable number.

1666436593073 is a deficient number, since it is larger than the sum of its proper divisors (284513565007).

1666436593073 is an equidigital number, since it uses as much as digits as its factorization.

1666436593073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806399327.

The product of its (nonzero) digits is 44089920, while the sum is 59.

The spelling of 1666436593073 in words is "one trillion, six hundred sixty-six billion, four hundred thirty-six million, five hundred ninety-three thousand, seventy-three".