1660056616658 has 32 divisors (see below), whose sum is σ = 2719000846080. Its totient is φ = 753864716160.

The previous prime is 1660056616649. The next prime is 1660056616667. The reversal of 1660056616658 is 8566166500661.

It is an interprime number because it is at equal distance from previous prime (1660056616649) and next prime (1660056616667).

It is a super-3 number, since 3×1660056616658³ (a number of 38 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135630503 + ... + 135642741.

It is an arithmetic number, because the mean of its divisors is an integer number (84968776440).

Almost surely, 2^{1660056616658} is an apocalyptic number.

1660056616658 is a deficient number, since it is larger than the sum of its proper divisors (1058944229422).

1660056616658 is a wasteful number, since it uses less digits than its factorization.

1660056616658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17522.

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 1660056616658 in words is "one trillion, six hundred sixty billion, fifty-six million, six hundred sixteen thousand, six hundred fifty-eight".