210144505530 has 32 divisors (see below), whose sum is σ = 505989658944. Its totient is φ = 55855996416.

The previous prime is 210144505507. The next prime is 210144505531. The reversal of 210144505530 is 35505441012.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (210144505531) 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, 11399287 + ... + 11417706.

It is an arithmetic number, because the mean of its divisors is an integer number (15812176842).

Almost surely, 2^210144505530 is an apocalyptic number.

210144505530 is an abundant number, since it is smaller than the sum of its proper divisors (295845153414).

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

210144505530 is a wasteful number, since it uses less digits than its factorization.

210144505530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22817310.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 210144505530 its reverse (35505441012), we get a palindrome (245649946542).

The spelling of 210144505530 in words is "two hundred ten billion, one hundred forty-four million, five hundred five thousand, five hundred thirty".