165361441634 has 8 divisors (see below), whose sum is σ = 248363047260. Its totient is φ = 82573759216.

The previous prime is 165361441577. The next prime is 165361441667. The reversal of 165361441634 is 436144163561.

It can be written as a sum of positive squares in 2 ways, for example, as 165158521609 + 202920025 = 406397^2 + 14245^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 53478869 + ... + 53481960.

Almost surely, 2^165361441634 is an apocalyptic number.

165361441634 is a deficient number, since it is larger than the sum of its proper divisors (83001605626).

165361441634 is a wasteful number, since it uses less digits than its factorization.

165361441634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106961604.

The product of its digits is 622080, while the sum is 44.

The spelling of 165361441634 in words is "one hundred sixty-five billion, three hundred sixty-one million, four hundred forty-one thousand, six hundred thirty-four".