220530522015 has 48 divisors (see below), whose sum is σ = 391326361920. Its totient is φ = 114856358400.

The previous prime is 220530521951. The next prime is 220530522031. The reversal of 220530522015 is 510225035022.

It is not a de Polignac number, because 220530522015 - 2⁶ = 220530521951 is a prime.

It is a super-2 number, since 2×220530522015² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220530522015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 555 + ... + 664124.

It is an arithmetic number, because the mean of its divisors is an integer number (8152632540).

Almost surely, 2^220530522015 is an apocalyptic number.

220530522015 is a deficient number, since it is larger than the sum of its proper divisors (170795839905).

220530522015 is a wasteful number, since it uses less digits than its factorization.

220530522015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664864 (or 664861 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 220530522015 its reverse (510225035022), we get a palindrome (730755557037).

The spelling of 220530522015 in words is "two hundred twenty billion, five hundred thirty million, five hundred twenty-two thousand, fifteen".