165201050666746 has 32 divisors (see below), whose sum is σ = 248203061085888. Its totient is φ = 82466841663360.

The previous prime is 165201050666689. The next prime is 165201050666747. The reversal of 165201050666746 is 647666050102561.

It is a happy number.

It is a super-2 number, since 2×165201050666746² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165201050666747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25450782561 + ... + 25450789051.

It is an arithmetic number, because the mean of its divisors is an integer number (7756345658934).

Almost surely, 2^{165201050666746} is an apocalyptic number.

165201050666746 is a deficient number, since it is larger than the sum of its proper divisors (83002010419142).

165201050666746 is a wasteful number, since it uses less digits than its factorization.

165201050666746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14766.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 165201050666746 in words is "one hundred sixty-five trillion, two hundred one billion, fifty million, six hundred sixty-six thousand, seven hundred forty-six".