165670701111671 has 32 divisors (see below), whose sum is σ = 202176374737920. Its totient is φ = 132662897224704.

The previous prime is 165670701111667. The next prime is 165670701111701. The reversal of 165670701111671 is 176111107076561.

It is not a de Polignac number, because 165670701111671 - 2² = 165670701111667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165670701111271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120531431 + ... + 121898183.

It is an arithmetic number, because the mean of its divisors is an integer number (6318011710560).

Almost surely, 2^{165670701111671} is an apocalyptic number.

165670701111671 is a deficient number, since it is larger than the sum of its proper divisors (36505673626249).

165670701111671 is a wasteful number, since it uses less digits than its factorization.

165670701111671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384335.

The product of its (nonzero) digits is 370440, while the sum is 50.

The spelling of 165670701111671 in words is "one hundred sixty-five trillion, six hundred seventy billion, seven hundred one million, one hundred eleven thousand, six hundred seventy-one".