165650202472 has 8 divisors (see below), whose sum is σ = 310594129650. Its totient is φ = 82825101232.

The previous prime is 165650202461. The next prime is 165650202517. The reversal of 165650202472 is 274202056561.

165650202472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 165481358436 + 168844036 = 406794^2 + 12994^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10353137647 + ... + 10353137662.

Almost surely, 2^165650202472 is an apocalyptic number.

It is an amenable number.

165650202472 is a deficient number, since it is larger than the sum of its proper divisors (144943927178).

165650202472 is a wasteful number, since it uses less digits than its factorization.

165650202472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20706275315 (or 20706275311 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 165650202472 in words is "one hundred sixty-five billion, six hundred fifty million, two hundred two thousand, four hundred seventy-two".