165656162122 has 32 divisors (see below), whose sum is σ = 275169965184. Its totient is φ = 74162558400.

The previous prime is 165656162107. The next prime is 165656162123. The reversal of 165656162122 is 221261656561.

It is not an unprimeable number, because it can be changed into a prime (165656162123) 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, 1504128 + ... + 1610500.

It is an arithmetic number, because the mean of its divisors is an integer number (8599061412).

Almost surely, 2^165656162122 is an apocalyptic number.

165656162122 is a deficient number, since it is larger than the sum of its proper divisors (109513803062).

165656162122 is a wasteful number, since it uses less digits than its factorization.

165656162122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107454.

The product of its digits is 259200, while the sum is 43.

The spelling of 165656162122 in words is "one hundred sixty-five billion, six hundred fifty-six million, one hundred sixty-two thousand, one hundred twenty-two".