120656205503205 has 64 divisors (see below), whose sum is σ = 195419868247296. Its totient is φ = 63563692032000.

The previous prime is 120656205503201. The next prime is 120656205503263. The reversal of 120656205503205 is 502305502656021.

It is not a de Polignac number, because 120656205503205 - 2² = 120656205503201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120656205503201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1021749765 + ... + 1021867845.

It is an arithmetic number, because the mean of its divisors is an integer number (3053435441364).

Almost surely, 2^{120656205503205} is an apocalyptic number.

120656205503205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120656205503205 is a deficient number, since it is larger than the sum of its proper divisors (74763662744091).

120656205503205 is a wasteful number, since it uses less digits than its factorization.

120656205503205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120038.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 120656205503205 in words is "one hundred twenty trillion, six hundred fifty-six billion, two hundred five million, five hundred three thousand, two hundred five".