1668110023 has 6 divisors (see below), whose sum is σ = 1772006456. Its totient is φ = 1569985632.

The previous prime is 1668110021. The next prime is 1668110027. The reversal of 1668110023 is 3200118661.

It is not a de Polignac number, because 1668110023 - 2¹ = 1668110021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1668109973 and 1668110000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668110021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2885715 + ... + 2886292.

Almost surely, 2^1668110023 is an apocalyptic number.

1668110023 is a deficient number, since it is larger than the sum of its proper divisors (103896433).

1668110023 is an equidigital number, since it uses as much as digits as its factorization.

1668110023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5772041 (or 5772024 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1668110023 is about 40842.5026534859. The cubic root of 1668110023 is about 1185.9732603761.

Adding to 1668110023 its reverse (3200118661), we get a palindrome (4868228684).

The spelling of 1668110023 in words is "one billion, six hundred sixty-eight million, one hundred ten thousand, twenty-three".