165435223210 has 16 divisors (see below), whose sum is σ = 297790605792. Its totient is φ = 66172488400.

The previous prime is 165435223183. The next prime is 165435223211. The reversal of 165435223210 is 12322534561.

It is not an unprimeable number, because it can be changed into a prime (165435223211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291405 + ... + 644815.

It is an arithmetic number, because the mean of its divisors is an integer number (18611912862).

Almost surely, 2^165435223210 is an apocalyptic number.

165435223210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165435223210 is a deficient number, since it is larger than the sum of its proper divisors (132355382582).

165435223210 is a wasteful number, since it uses less digits than its factorization.

165435223210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400229.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 165435223210 its reverse (12322534561), we get a palindrome (177757757771).

The spelling of 165435223210 in words is "one hundred sixty-five billion, four hundred thirty-five million, two hundred twenty-three thousand, two hundred ten".