165752533745 has 16 divisors (see below), whose sum is σ = 199795444992. Its totient is φ = 132007313280.

The previous prime is 165752533703. The next prime is 165752533789. The reversal of 165752533745 is 547335257561.

It is not a de Polignac number, because 165752533745 - 2²² = 165748339441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7985030 + ... + 8005760.

It is an arithmetic number, because the mean of its divisors is an integer number (12487215312).

Almost surely, 2^165752533745 is an apocalyptic number.

It is an amenable number.

165752533745 is a deficient number, since it is larger than the sum of its proper divisors (34042911247).

165752533745 is a wasteful number, since it uses less digits than its factorization.

165752533745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27832.

The product of its digits is 13230000, while the sum is 53.

The spelling of 165752533745 in words is "one hundred sixty-five billion, seven hundred fifty-two million, five hundred thirty-three thousand, seven hundred forty-five".