165055643234600 has 24 divisors (see below), whose sum is σ = 383754370520910. Its totient is φ = 66022257293760.

The previous prime is 165055643234597. The next prime is 165055643234623. The reversal of 165055643234600 is 6432346550561.

It can be written as a sum of positive squares in 3 ways, for example, as 159174911534116 + 5880731700484 = 12616454^2 + 2425022^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 412639107887 + ... + 412639108286.

Almost surely, 2^{165055643234600} is an apocalyptic number.

165055643234600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165055643234600 is an abundant number, since it is smaller than the sum of its proper divisors (218698727286310).

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

165055643234600 is a wasteful number, since it uses less digits than its factorization.

165055643234600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825278216189 (or 825278216180 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 50.

The spelling of 165055643234600 in words is "one hundred sixty-five trillion, fifty-five billion, six hundred forty-three million, two hundred thirty-four thousand, six hundred".