165745231298 has 4 divisors (see below), whose sum is σ = 248617846950. Its totient is φ = 82872615648.

The previous prime is 165745231277. The next prime is 165745231349. The reversal of 165745231298 is 892132547561.

165745231298 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 144995693089 + 20749538209 = 380783^2 + 144047^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41436307823 + ... + 41436307826.

Almost surely, 2^165745231298 is an apocalyptic number.

165745231298 is a deficient number, since it is larger than the sum of its proper divisors (82872615652).

165745231298 is an equidigital number, since it uses as much as digits as its factorization.

165745231298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82872615651.

The product of its digits is 3628800, while the sum is 53.

The spelling of 165745231298 in words is "one hundred sixty-five billion, seven hundred forty-five million, two hundred thirty-one thousand, two hundred ninety-eight".