165545531453435 has 16 divisors (see below), whose sum is σ = 227539515096000. Its totient is φ = 113264114159616.

The previous prime is 165545531453377. The next prime is 165545531453437. The reversal of 165545531453435 is 534354135545561.

It is a happy number.

165545531453435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165545531453435 - 2⁶ = 165545531453371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165545531453437) 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, 5267102690 + ... + 5267134119.

It is an arithmetic number, because the mean of its divisors is an integer number (14221219693500).

Almost surely, 2^{165545531453435} is an apocalyptic number.

165545531453435 is a deficient number, since it is larger than the sum of its proper divisors (61993983642565).

165545531453435 is a wasteful number, since it uses less digits than its factorization.

165545531453435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10534237270.

The product of its digits is 162000000, while the sum is 59.

Adding to 165545531453435 its reverse (534354135545561), we get a palindrome (699899666998996).

The spelling of 165545531453435 in words is "one hundred sixty-five trillion, five hundred forty-five billion, five hundred thirty-one million, four hundred fifty-three thousand, four hundred thirty-five".