123834666066 has 32 divisors (see below), whose sum is σ = 252174394368. Its totient is φ = 40531341840.

The previous prime is 123834666061. The next prime is 123834666169. The reversal of 123834666066 is 660666438321.

It is a super-3 number, since 3×123834666066³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (123834666061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370230 + ... + 620273.

It is an arithmetic number, because the mean of its divisors is an integer number (7880449824).

Almost surely, 2^123834666066 is an apocalyptic number.

123834666066 is an abundant number, since it is smaller than the sum of its proper divisors (128339728302).

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

123834666066 is a wasteful number, since it uses less digits than its factorization.

123834666066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990886.

The product of its (nonzero) digits is 4478976, while the sum is 51.

The spelling of 123834666066 in words is "one hundred twenty-three billion, eight hundred thirty-four million, six hundred sixty-six thousand, sixty-six".