123344777660 has 96 divisors (see below), whose sum is σ = 292687903872. Its totient is φ = 43321512960.

The previous prime is 123344777653. The next prime is 123344777819. The reversal of 123344777660 is 66777443321.

It is a junction number, because it is equal to n+sod(n) for n = 123344777599 and 123344777608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1025402 + ... + 1139358.

It is an arithmetic number, because the mean of its divisors is an integer number (3048832332).

Almost surely, 2^123344777660 is an apocalyptic number.

123344777660 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 123344777660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146343951936).

123344777660 is an abundant number, since it is smaller than the sum of its proper divisors (169343126212).

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

123344777660 is a wasteful number, since it uses less digits than its factorization.

123344777660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114183 (or 114181 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 50.

The spelling of 123344777660 in words is "one hundred twenty-three billion, three hundred forty-four million, seven hundred seventy-seven thousand, six hundred sixty".