220406162523 has 8 divisors (see below), whose sum is σ = 293880736848. Its totient is φ = 146934514944.

The previous prime is 220406162521. The next prime is 220406162597. The reversal of 220406162523 is 325261604022.

It is a happy number.

220406162523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 220406162523 - 2¹ = 220406162521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220406162521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549486 + ... + 861827.

It is an arithmetic number, because the mean of its divisors is an integer number (36735092106).

Almost surely, 2^220406162523 is an apocalyptic number.

220406162523 is a deficient number, since it is larger than the sum of its proper divisors (73474574325).

220406162523 is a wasteful number, since it uses less digits than its factorization.

220406162523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463373.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 220406162523 its reverse (325261604022), we get a palindrome (545667766545).

The spelling of 220406162523 in words is "two hundred twenty billion, four hundred six million, one hundred sixty-two thousand, five hundred twenty-three".