165261376968 has 64 divisors (see below), whose sum is σ = 415087545600. Its totient is φ = 54829432320.

The previous prime is 165261376963. The next prime is 165261376979. The reversal of 165261376968 is 869673162561.

It is a super-3 number, since 3×165261376968³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (165261376963) 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, 21911278 + ... + 21918818.

It is an arithmetic number, because the mean of its divisors is an integer number (6485742900).

Almost surely, 2^165261376968 is an apocalyptic number.

It is an amenable number.

165261376968 is an abundant number, since it is smaller than the sum of its proper divisors (249826168632).

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

165261376968 is a wasteful number, since it uses less digits than its factorization.

165261376968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11702 (or 11698 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The spelling of 165261376968 in words is "one hundred sixty-five billion, two hundred sixty-one million, three hundred seventy-six thousand, nine hundred sixty-eight".