520066120555 has 8 divisors (see below), whose sum is σ = 625131758592. Its totient is φ = 415351287168.

The previous prime is 520066120543. The next prime is 520066120559. The reversal of 520066120555 is 555021660025.

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 520066120555 - 2²¹ = 520064023403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520066120559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87697899 + ... + 87703828.

It is an arithmetic number, because the mean of its divisors is an integer number (78141469824).

Almost surely, 2^520066120555 is an apocalyptic number.

520066120555 is a deficient number, since it is larger than the sum of its proper divisors (105065638037).

520066120555 is a wasteful number, since it uses less digits than its factorization.

520066120555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175402325.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 520066120555 in words is "five hundred twenty billion, sixty-six million, one hundred twenty thousand, five hundred fifty-five".