1660346077771 has 8 divisors (see below), whose sum is σ = 1695706367040. Its totient is φ = 1624987195968.

The previous prime is 1660346077751. The next prime is 1660346077823. The reversal of 1660346077771 is 1777706430661.

It is a happy number.

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 1660346077771 - 2²⁵ = 1660312523339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1660346077721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2232585 + ... + 2881861.

It is an arithmetic number, because the mean of its divisors is an integer number (211963295880).

Almost surely, 2^{1660346077771} is an apocalyptic number.

1660346077771 is a deficient number, since it is larger than the sum of its proper divisors (35360289269).

1660346077771 is an equidigital number, since it uses as much as digits as its factorization.

1660346077771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703733.

The product of its (nonzero) digits is 6223392, while the sum is 55.

The spelling of 1660346077771 in words is "one trillion, six hundred sixty billion, three hundred forty-six million, seventy-seven thousand, seven hundred seventy-one".