660116023 has 4 divisors (see below), whose sum is σ = 754418320. Its totient is φ = 565813728.

The previous prime is 660115969. The next prime is 660116027. The reversal of 660116023 is 320611066.

660116023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660116023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660116027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47151138 + ... + 47151151.

It is an arithmetic number, because the mean of its divisors is an integer number (188604580).

Almost surely, 2^660116023 is an apocalyptic number.

660116023 is a deficient number, since it is larger than the sum of its proper divisors (94302297).

660116023 is an equidigital number, since it uses as much as digits as its factorization.

660116023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94302296.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 660116023 is about 25692.7231526750. The cubic root of 660116023 is about 870.7097845333.

Adding to 660116023 its reverse (320611066), we get a palindrome (980727089).

The spelling of 660116023 in words is "six hundred sixty million, one hundred sixteen thousand, twenty-three".