1660923383 has 8 divisors (see below), whose sum is σ = 1909565952. Its totient is φ = 1415122776.

The previous prime is 1660923359. The next prime is 1660923421. The reversal of 1660923383 is 3833290661.

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 1660923383 - 2¹⁰ = 1660922359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1660923383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660923353) 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 7 ways as a sum of consecutive naturals, for example, 709235 + ... + 711572.

It is an arithmetic number, because the mean of its divisors is an integer number (238695744).

Almost surely, 2^1660923383 is an apocalyptic number.

1660923383 is a deficient number, since it is larger than the sum of its proper divisors (248642569).

1660923383 is a wasteful number, since it uses less digits than its factorization.

1660923383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420981.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 1660923383 is about 40754.4277717158. The cubic root of 1660923383 is about 1184.2676510107.

The spelling of 1660923383 in words is "one billion, six hundred sixty million, nine hundred twenty-three thousand, three hundred eighty-three".