123416866 has 32 divisors (see below), whose sum is σ = 196709760. Its totient is φ = 57988224.

The previous prime is 123416857. The next prime is 123416879. The reversal of 123416866 is 668614321.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 435961 + ... + 436243.

It is an arithmetic number, because the mean of its divisors is an integer number (6147180).

Almost surely, 2^123416866 is an apocalyptic number.

123416866 is a deficient number, since it is larger than the sum of its proper divisors (73292894).

123416866 is a wasteful number, since it uses less digits than its factorization.

123416866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490.

The product of its digits is 41472, while the sum is 37.

The square root of 123416866 is about 11109.3143802847. The cubic root of 123416866 is about 497.8801800947.

The spelling of 123416866 in words is "one hundred twenty-three million, four hundred sixteen thousand, eight hundred sixty-six".