120650616405 has 24 divisors (see below), whose sum is σ = 228139348320. Its totient is φ = 58497268320.

The previous prime is 120650616403. The next prime is 120650616409. The reversal of 120650616405 is 504616056021.

120650616405 is a `hidden beast` number, since 1 + 2 + 0 + 6 + 5 + 0 + 6 + 1 + 640 + 5 = 666.

It is not a de Polignac number, because 120650616405 - 2¹ = 120650616403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120650616405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120650616403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121868815 + ... + 121869804.

It is an arithmetic number, because the mean of its divisors is an integer number (9505806180).

Almost surely, 2^120650616405 is an apocalyptic number.

120650616405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120650616405 is a deficient number, since it is larger than the sum of its proper divisors (107488731915).

120650616405 is a wasteful number, since it uses less digits than its factorization.

120650616405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243738641 (or 243738638 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 120650616405 in words is "one hundred twenty billion, six hundred fifty million, six hundred sixteen thousand, four hundred five".