165707143641 has 24 divisors (see below), whose sum is σ = 258195673736. Its totient is φ = 101803910400.

The previous prime is 165707143621. The next prime is 165707143703. The reversal of 165707143641 is 146341707561.

It is a happy number.

165707143641 is a `hidden beast` number, since 1 + 6 + 570 + 7 + 1 + 4 + 36 + 41 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 725763600 + 164981380041 = 26940^2 + 406179^2 .

It is not a de Polignac number, because 165707143641 - 2⁶ = 165707143577 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (165707143621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1107970 + ... + 1248603.

Almost surely, 2^165707143641 is an apocalyptic number.

It is an amenable number.

165707143641 is a deficient number, since it is larger than the sum of its proper divisors (92488530095).

165707143641 is a wasteful number, since it uses less digits than its factorization.

165707143641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357193 (or 2357190 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 165707143641 in words is "one hundred sixty-five billion, seven hundred seven million, one hundred forty-three thousand, six hundred forty-one".