165210144465130 has 64 divisors (see below), whose sum is σ = 304548963637248. Its totient is φ = 64493157496320.

The previous prime is 165210144465053. The next prime is 165210144465161. The reversal of 165210144465130 is 31564441012561.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4944470304 + ... + 4944503716.

It is an arithmetic number, because the mean of its divisors is an integer number (4758577556832).

Almost surely, 2^{165210144465130} is an apocalyptic number.

165210144465130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165210144465130 is a deficient number, since it is larger than the sum of its proper divisors (139338819172118).

165210144465130 is a wasteful number, since it uses less digits than its factorization.

165210144465130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42751.

The product of its (nonzero) digits is 345600, while the sum is 43.

Adding to 165210144465130 its reverse (31564441012561), we get a palindrome (196774585477691).

The spelling of 165210144465130 in words is "one hundred sixty-five trillion, two hundred ten billion, one hundred forty-four million, four hundred sixty-five thousand, one hundred thirty".