1666170088453 has 16 divisors (see below), whose sum is σ = 1795844768256. Its totient is φ = 1536711266880.

The previous prime is 1666170088441. The next prime is 1666170088459. The reversal of 1666170088453 is 3548800716661.

It is a cyclic number.

It is not a de Polignac number, because 1666170088453 - 2⁵ = 1666170088421 is a prime.

It is a super-2 number, since 2×1666170088453² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1666170088394 and 1666170088403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666170088459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180688383 + ... + 180697603.

It is an arithmetic number, because the mean of its divisors is an integer number (112240298016).

Almost surely, 2^{1666170088453} is an apocalyptic number.

1666170088453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1666170088453 is a deficient number, since it is larger than the sum of its proper divisors (129674679803).

1666170088453 is a wasteful number, since it uses less digits than its factorization.

1666170088453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19404.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 1666170088453 in words is "one trillion, six hundred sixty-six billion, one hundred seventy million, eighty-eight thousand, four hundred fifty-three".