220235040504 has 128 divisors (see below), whose sum is σ = 642910752000. Its totient is φ = 69766365312.

The previous prime is 220235040503. The next prime is 220235040521. The reversal of 220235040504 is 405040532022.

It is a happy number.

220235040504 is a `hidden beast` number, since 2 + 20 + 235 + 0 + 405 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220235040503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23227 + ... + 664085.

It is an arithmetic number, because the mean of its divisors is an integer number (5022740250).

Almost surely, 2^220235040504 is an apocalyptic number.

220235040504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220235040504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321455376000).

220235040504 is an abundant number, since it is smaller than the sum of its proper divisors (422675711496).

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

220235040504 is a wasteful number, since it uses less digits than its factorization.

220235040504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640954 (or 640944 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 220235040504 its reverse (405040532022), we get a palindrome (625275572526).

The spelling of 220235040504 in words is "two hundred twenty billion, two hundred thirty-five million, forty thousand, five hundred four".