220145064 has 32 divisors (see below), whose sum is σ = 553225920. Its totient is φ = 72999936.

The previous prime is 220145063. The next prime is 220145071. The reversal of 220145064 is 460541022.

220145064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (220145063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19132 + ... + 28395.

It is an arithmetic number, because the mean of its divisors is an integer number (17288310).

Almost surely, 2^220145064 is an apocalyptic number.

220145064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220145064 is an abundant number, since it is smaller than the sum of its proper divisors (333080856).

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

220145064 is a wasteful number, since it uses less digits than its factorization.

220145064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47729 (or 47725 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 220145064 is about 14837.2862747876. The cubic root of 220145064 is about 603.8137299683.

Adding to 220145064 its reverse (460541022), we get a palindrome (680686086).

The spelling of 220145064 in words is "two hundred twenty million, one hundred forty-five thousand, sixty-four".