165575501641 has 8 divisors (see below), whose sum is σ = 180631717344. Its totient is φ = 150519935520.

The previous prime is 165575501639. The next prime is 165575501677. The reversal of 165575501641 is 146105575561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165575501641 - 2¹ = 165575501639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165575501591 and 165575501600.

It is not an unprimeable number, because it can be changed into a prime (165575501041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481645 + ... + 750421.

It is an arithmetic number, because the mean of its divisors is an integer number (22578964668).

Almost surely, 2^165575501641 is an apocalyptic number.

165575501641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

165575501641 is a deficient number, since it is larger than the sum of its proper divisors (15056215703).

165575501641 is a wasteful number, since it uses less digits than its factorization.

165575501641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324791.

The product of its (nonzero) digits is 630000, while the sum is 46.

The spelling of 165575501641 in words is "one hundred sixty-five billion, five hundred seventy-five million, five hundred one thousand, six hundred forty-one".