123611604480 has 1920 divisors, whose sum is σ = 579112934400. Its totient is φ = 23633068032.

The previous prime is 123611604463. The next prime is 123611604491. The reversal of 123611604480 is 84406116321.

123611604480 is a `hidden beast` number, since 1 + 2 + 3 + 6 + 1 + 1 + 604 + 48 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1155248587 + ... + 1155248693.

It is an arithmetic number, because the mean of its divisors is an integer number (301621320).

Almost surely, 2^123611604480 is an apocalyptic number.

123611604480 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 123611604480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289556467200).

123611604480 is an abundant number, since it is smaller than the sum of its proper divisors (455501329920).

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

123611604480 is a wasteful number, since it uses less digits than its factorization.

123611604480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 123611604480 in words is "one hundred twenty-three billion, six hundred eleven million, six hundred four thousand, four hundred eighty".