123546660 has 96 divisors (see below), whose sum is σ = 356748672. Its totient is φ = 31933440.

The previous prime is 123546637. The next prime is 123546671. The reversal of 123546660 is 66645321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293250 + ... + 293670.

It is an arithmetic number, because the mean of its divisors is an integer number (3716132).

Almost surely, 2^123546660 is an apocalyptic number.

123546660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123546660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178374336).

123546660 is an abundant number, since it is smaller than the sum of its proper divisors (233202012).

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

123546660 is a wasteful number, since it uses less digits than its factorization.

123546660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 123546660 is about 11115.1545198436. The cubic root of 123546660 is about 498.0546544103.

It can be divided in two parts, 1235 and 46660, that added together give a triangular number (47895 = T₃₀₉).

The spelling of 123546660 in words is "one hundred twenty-three million, five hundred forty-six thousand, six hundred sixty".