220320432355152 has 80 divisors (see below), whose sum is σ = 602793105057792. Its totient is φ = 69102710845440.

The previous prime is 220320432355091. The next prime is 220320432355157. The reversal of 220320432355152 is 251553234023022.

It is a happy number.

It is a super-2 number, since 2×220320432355152² (a number of 29 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 220320432355152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220320432355157) 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, 30793749 + ... + 37267892.

Almost surely, 2^{220320432355152} is an apocalyptic number.

It is an amenable number.

220320432355152 is an abundant number, since it is smaller than the sum of its proper divisors (382472672702640).

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

220320432355152 is a wasteful number, since it uses less digits than its factorization.

220320432355152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68065636 (or 68065630 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 39.

Adding to 220320432355152 its reverse (251553234023022), we get a palindrome (471873666378174).

The spelling of 220320432355152 in words is "two hundred twenty trillion, three hundred twenty billion, four hundred thirty-two million, three hundred fifty-five thousand, one hundred fifty-two".