165444167652 has 24 divisors (see below), whose sum is σ = 386045372832. Its totient is φ = 55146772800.

The previous prime is 165444167639. The next prime is 165444167689. The reversal of 165444167652 is 256761444561.

It is a super-2 number, since 2×165444167652² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165444167595 and 165444167604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478752 + ... + 748392.

It is an arithmetic number, because the mean of its divisors is an integer number (16085223868).

Almost surely, 2^165444167652 is an apocalyptic number.

165444167652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165444167652 is an abundant number, since it is smaller than the sum of its proper divisors (220601205180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165444167652 is a wasteful number, since it uses less digits than its factorization.

165444167652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320779 (or 320777 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 51.

The spelling of 165444167652 in words is "one hundred sixty-five billion, four hundred forty-four million, one hundred sixty-seven thousand, six hundred fifty-two".