165235570412 has 48 divisors (see below), whose sum is σ = 341773229952. Its totient is φ = 69045070080.

The previous prime is 165235570403. The next prime is 165235570471. The reversal of 165235570412 is 214075532561.

It is a self number, because there is not a number n which added to its sum of digits gives 165235570412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2536478 + ... + 2600805.

It is an arithmetic number, because the mean of its divisors is an integer number (7120275624).

Almost surely, 2^165235570412 is an apocalyptic number.

It is an amenable number.

165235570412 is an abundant number, since it is smaller than the sum of its proper divisors (176537659540).

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

165235570412 is a wasteful number, since it uses less digits than its factorization.

165235570412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5137358 (or 5137356 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 165235570412 in words is "one hundred sixty-five billion, two hundred thirty-five million, five hundred seventy thousand, four hundred twelve".