123666260 has 24 divisors (see below), whose sum is σ = 259961856. Its totient is φ = 49416480.

The previous prime is 123666253. The next prime is 123666271. The reversal of 123666260 is 62666321.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 22109 + ... + 27131.

It is an arithmetic number, because the mean of its divisors is an integer number (10831744).

Almost surely, 2^123666260 is an apocalyptic number.

123666260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123666260 is an abundant number, since it is smaller than the sum of its proper divisors (136295596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123666260 is a wasteful number, since it uses less digits than its factorization.

123666260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6263 (or 6261 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 123666260 is about 11120.5332605950. The cubic root of 123666260 is about 498.2153173952.

The spelling of 123666260 in words is "one hundred twenty-three million, six hundred sixty-six thousand, two hundred sixty".