123147444960 has 192 divisors, whose sum is σ = 431192160000. Its totient is φ = 32825903616.

The previous prime is 123147444923. The next prime is 123147444961. The reversal of 123147444960 is 69444741321.

123147444960 is a `hidden beast` number, since 1 + 2 + 3 + 147 + 4 + 449 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123147444961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15111607 + ... + 15119753.

It is an arithmetic number, because the mean of its divisors is an integer number (2245792500).

Almost surely, 2^123147444960 is an apocalyptic number.

123147444960 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 123147444960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215596080000).

123147444960 is an abundant number, since it is smaller than the sum of its proper divisors (308044715040).

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

123147444960 is a wasteful number, since it uses less digits than its factorization.

123147444960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11670 (or 11656 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 123147444960 in words is "one hundred twenty-three billion, one hundred forty-seven million, four hundred forty-four thousand, nine hundred sixty".