220023147564 has 72 divisors (see below), whose sum is σ = 642420546768. Its totient is φ = 62751697920.

The previous prime is 220023147557. The next prime is 220023147571. The reversal of 220023147564 is 465741320022.

220023147564 is a `hidden beast` number, since 2 + 20 + 0 + 2 + 31 + 47 + 564 = 666.

220023147564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220023147557) and next prime (220023147571).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 16334857 + ... + 16348320.

It is an arithmetic number, because the mean of its divisors is an integer number (8922507594).

Almost surely, 2^220023147564 is an apocalyptic number.

It is an amenable number.

220023147564 is an abundant number, since it is smaller than the sum of its proper divisors (422397399204).

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

220023147564 is a wasteful number, since it uses less digits than its factorization.

220023147564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32683215 (or 32683210 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

Adding to 220023147564 its reverse (465741320022), we get a palindrome (685764467586).

The spelling of 220023147564 in words is "two hundred twenty billion, twenty-three million, one hundred forty-seven thousand, five hundred sixty-four".