120565497600 has 864 divisors, whose sum is σ = 464250286080. Its totient is φ = 30578688000.

The previous prime is 120565497593. The next prime is 120565497601. The reversal of 120565497600 is 6794565021.

120565497600 is a `hidden beast` number, since 1 + 20 + 565 + 4 + 9 + 7 + 60 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

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 (120565497601) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 380332642 + ... + 380332958.

It is an arithmetic number, because the mean of its divisors is an integer number (537326720).

Almost surely, 2^120565497600 is an apocalyptic number.

120565497600 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 120565497600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232125143040).

120565497600 is an abundant number, since it is smaller than the sum of its proper divisors (343684788480).

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

120565497600 is a wasteful number, since it uses less digits than its factorization.

120565497600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 120565497600 in words is "one hundred twenty billion, five hundred sixty-five million, four hundred ninety-seven thousand, six hundred".