124421515680 has 768 divisors, whose sum is σ = 509392945152. Its totient is φ = 24798412800.

The previous prime is 124421515661. The next prime is 124421515727. The reversal of 124421515680 is 86515124421.

It is a happy 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 127 ways as a sum of consecutive naturals, for example, 1101075304 + ... + 1101075416.

It is an arithmetic number, because the mean of its divisors is an integer number (663272064).

Almost surely, 2^124421515680 is an apocalyptic number.

124421515680 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 124421515680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254696472576).

124421515680 is an abundant number, since it is smaller than the sum of its proper divisors (384971429472).

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

124421515680 is a wasteful number, since it uses less digits than its factorization.

124421515680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 124421515680 in words is "one hundred twenty-four billion, four hundred twenty-one million, five hundred fifteen thousand, six hundred eighty".