165006442613 has 16 divisors (see below), whose sum is σ = 169631884800. Its totient is φ = 160449394560.

The previous prime is 165006442603. The next prime is 165006442649. The reversal of 165006442613 is 316244600561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165006442613 is a prime.

It is a super-2 number, since 2×165006442613² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165006442603) 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 15 ways as a sum of consecutive naturals, for example, 5329943 + ... + 5360811.

It is an arithmetic number, because the mean of its divisors is an integer number (10601992800).

Almost surely, 2^165006442613 is an apocalyptic number.

It is an amenable number.

165006442613 is a deficient number, since it is larger than the sum of its proper divisors (4625442187).

165006442613 is an equidigital number, since it uses as much as digits as its factorization.

165006442613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31972.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 165006442613 in words is "one hundred sixty-five billion, six million, four hundred forty-two thousand, six hundred thirteen".