123456166834 has 32 divisors (see below), whose sum is σ = 248638997376. Its totient is φ = 44399819520.

The previous prime is 123456166819. The next prime is 123456166843. The reversal of 123456166834 is 438661654321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30831207 + ... + 30835210.

It is an arithmetic number, because the mean of its divisors is an integer number (7769968668).

Almost surely, 2^123456166834 is an apocalyptic number.

123456166834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123456166834 is an abundant number, since it is smaller than the sum of its proper divisors (125182830542).

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

123456166834 is a wasteful number, since it uses less digits than its factorization.

123456166834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61666450.

The product of its digits is 2488320, while the sum is 49.

The spelling of 123456166834 in words is "one hundred twenty-three billion, four hundred fifty-six million, one hundred sixty-six thousand, eight hundred thirty-four".