120520666672205 has 8 divisors (see below), whose sum is σ = 148533578385432. Its totient is φ = 93810681085248.

The previous prime is 120520666672157. The next prime is 120520666672229. The reversal of 120520666672205 is 502276666025021.

It can be written as a sum of positive squares in 4 ways, for example, as 29521639957924 + 90999026714281 = 5433382^2 + 9539341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120520666672205 - 2⁸ = 120520666671949 is a prime.

It is a super-2 number, since 2×120520666672205² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325731531362 + ... + 325731531731.

It is an arithmetic number, because the mean of its divisors is an integer number (18566697298179).

Almost surely, 2^{120520666672205} is an apocalyptic number.

It is an amenable number.

120520666672205 is a deficient number, since it is larger than the sum of its proper divisors (28012911713227).

120520666672205 is an equidigital number, since it uses as much as digits as its factorization.

120520666672205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651463063135.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 120520666672205 in words is "one hundred twenty trillion, five hundred twenty billion, six hundred sixty-six million, six hundred seventy-two thousand, two hundred five".