220161501324 has 72 divisors (see below), whose sum is σ = 581658386400. Its totient is φ = 70082487552.

The previous prime is 220161501293. The next prime is 220161501349. The reversal of 220161501324 is 423105161022.

220161501324 is a `hidden beast` number, since 2 + 20 + 1 + 615 + 0 + 1 + 3 + 24 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 295402 + ... + 726350.

It is an arithmetic number, because the mean of its divisors is an integer number (8078588700).

Almost surely, 2^220161501324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220161501324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290829193200).

220161501324 is an abundant number, since it is smaller than the sum of its proper divisors (361496885076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220161501324 is a wasteful number, since it uses less digits than its factorization.

220161501324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431599 (or 431594 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 220161501324 its reverse (423105161022), we get a palindrome (643266662346).

The spelling of 220161501324 in words is "two hundred twenty billion, one hundred sixty-one million, five hundred one thousand, three hundred twenty-four".