165074043454 has 4 divisors (see below), whose sum is σ = 247611065184. Its totient is φ = 82537021726.

The previous prime is 165074043439. The next prime is 165074043461. The reversal of 165074043454 is 454340470561.

165074043454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 454340470561 = 17 ⋅26725910033.

It is a self number, because there is not a number n which added to its sum of digits gives 165074043454.

It is a congruent number.

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, 41268510862 + ... + 41268510865.

It is an arithmetic number, because the mean of its divisors is an integer number (61902766296).

Almost surely, 2^165074043454 is an apocalyptic number.

165074043454 is a deficient number, since it is larger than the sum of its proper divisors (82537021730).

165074043454 is an equidigital number, since it uses as much as digits as its factorization.

165074043454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82537021729.

The product of its (nonzero) digits is 806400, while the sum is 43.

The spelling of 165074043454 in words is "one hundred sixty-five billion, seventy-four million, forty-three thousand, four hundred fifty-four".