528730164021 has 16 divisors (see below), whose sum is σ = 728071761600. Its totient is φ = 341044115328.

The previous prime is 528730163999. The next prime is 528730164041. The reversal of 528730164021 is 120461037825.

528730164021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 528730164021 - 2²⁶ = 528663055157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528730164041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13285536 + ... + 13325273.

It is an arithmetic number, because the mean of its divisors is an integer number (45504485100).

Almost surely, 2^528730164021 is an apocalyptic number.

It is an amenable number.

528730164021 is a deficient number, since it is larger than the sum of its proper divisors (199341597579).

528730164021 is a wasteful number, since it uses less digits than its factorization.

528730164021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26611028.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 528730164021 in words is "five hundred twenty-eight billion, seven hundred thirty million, one hundred sixty-four thousand, twenty-one".