165213002665356 has 24 divisors (see below), whose sum is σ = 385980691318320. Its totient is φ = 55001903017152.

The previous prime is 165213002665351. The next prime is 165213002665397. The reversal of 165213002665356 is 653566200312561.

It is a super-3 number, since 3×165213002665356³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165213002665299 and 165213002665308.

It is not an unprimeable number, because it can be changed into a prime (165213002665351) 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, 8637223951 + ... + 8637243078.

It is an arithmetic number, because the mean of its divisors is an integer number (16082528804930).

Almost surely, 2^{165213002665356} is an apocalyptic number.

It is an amenable number.

165213002665356 is an abundant number, since it is smaller than the sum of its proper divisors (220767688652964).

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

165213002665356 is a wasteful number, since it uses less digits than its factorization.

165213002665356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17274467833 (or 17274467831 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 51.

The spelling of 165213002665356 in words is "one hundred sixty-five trillion, two hundred thirteen billion, two million, six hundred sixty-five thousand, three hundred fifty-six".