165160724638 has 32 divisors (see below), whose sum is σ = 306098622144. Its totient is φ = 65084055552.

The previous prime is 165160724593. The next prime is 165160724639. The reversal of 165160724638 is 836427061561.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 165160724591 and 165160724600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165160724639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1718745 + ... + 1812292.

It is an arithmetic number, because the mean of its divisors is an integer number (9565581942).

Almost surely, 2^165160724638 is an apocalyptic number.

165160724638 is a deficient number, since it is larger than the sum of its proper divisors (140937897506).

165160724638 is a wasteful number, since it uses less digits than its factorization.

165160724638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531316.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 165160724638 in words is "one hundred sixty-five billion, one hundred sixty million, seven hundred twenty-four thousand, six hundred thirty-eight".