123266267880 has 192 divisors, whose sum is σ = 430438847040. Its totient is φ = 28157810688.

The previous prime is 123266267837. The next prime is 123266267893. The reversal of 123266267880 is 88762662321.

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 47 ways as a sum of consecutive naturals, for example, 11207664 + ... + 11218656.

It is an arithmetic number, because the mean of its divisors is an integer number (2241868995).

Almost surely, 2^123266267880 is an apocalyptic number.

123266267880 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 123266267880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215219423520).

123266267880 is an abundant number, since it is smaller than the sum of its proper divisors (307172579160).

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

123266267880 is a wasteful number, since it uses less digits than its factorization.

123266267880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12928 (or 12917 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 123266267880 in words is "one hundred twenty-three billion, two hundred sixty-six million, two hundred sixty-seven thousand, eight hundred eighty".