165620050036 has 24 divisors (see below), whose sum is σ = 332178477120. Its totient is φ = 70778940672.

The previous prime is 165620050033. The next prime is 165620050069. The reversal of 165620050036 is 630050026561.

It is a super-3 number, since 3×165620050036³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165620049983 and 165620050010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165620050033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8368306 + ... + 8388073.

It is an arithmetic number, because the mean of its divisors is an integer number (13840769880).

Almost surely, 2^165620050036 is an apocalyptic number.

It is an amenable number.

165620050036 is an abundant number, since it is smaller than the sum of its proper divisors (166558427084).

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

165620050036 is a wasteful number, since it uses less digits than its factorization.

165620050036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16756743 (or 16756741 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 165620050036 its reverse (630050026561), we get a palindrome (795670076597).

The spelling of 165620050036 in words is "one hundred sixty-five billion, six hundred twenty million, fifty thousand, thirty-six".