165552458033 has 4 divisors (see below), whose sum is σ = 165694808688. Its totient is φ = 165410107380.

The previous prime is 165552458023. The next prime is 165552458039. The reversal of 165552458033 is 330854255561.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 330854255561 = 17 ⋅19462015033.

It is a cyclic number.

It is not a de Polignac number, because 165552458033 - 2⁴ = 165552458017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165552458039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71173583 + ... + 71175908.

It is an arithmetic number, because the mean of its divisors is an integer number (41423702172).

Almost surely, 2^165552458033 is an apocalyptic number.

It is an amenable number.

165552458033 is a deficient number, since it is larger than the sum of its proper divisors (142350655).

165552458033 is a wasteful number, since it uses less digits than its factorization.

165552458033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142350654.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 165552458033 in words is "one hundred sixty-five billion, five hundred fifty-two million, four hundred fifty-eight thousand, thirty-three".