1660056616659 has 8 divisors (see below), whose sum is σ = 2529610082560. Its totient is φ = 948603780936.

The previous prime is 1660056616649. The next prime is 1660056616667. The reversal of 1660056616659 is 9566166500661.

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

It is not a de Polignac number, because 1660056616659 - 2⁵ = 1660056616627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1660056616599 and 1660056616608.

It is not an unprimeable number, because it can be changed into a prime (1660056616649) 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, 39525157519 + ... + 39525157560.

It is an arithmetic number, because the mean of its divisors is an integer number (316201260320).

Almost surely, 2^{1660056616659} is an apocalyptic number.

1660056616659 is a deficient number, since it is larger than the sum of its proper divisors (869553465901).

1660056616659 is an equidigital number, since it uses as much as digits as its factorization.

1660056616659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79050315089.

The product of its (nonzero) digits is 10497600, while the sum is 57.

The spelling of 1660056616659 in words is "one trillion, six hundred sixty billion, fifty-six million, six hundred sixteen thousand, six hundred fifty-nine".