165156516166054 has 48 divisors (see below), whose sum is σ = 303353720654400. Its totient is φ = 67054919991696.

The previous prime is 165156516166051. The next prime is 165156516166121. The reversal of 165156516166054 is 450661615651561.

It is a self number, because there is not a number n which added to its sum of digits gives 165156516166054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165156516166051) 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 23 ways as a sum of consecutive naturals, for example, 116937337 + ... + 118341259.

It is an arithmetic number, because the mean of its divisors is an integer number (6319869180300).

Almost surely, 2^{165156516166054} is an apocalyptic number.

165156516166054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165156516166054 is a deficient number, since it is larger than the sum of its proper divisors (138197204488346).

165156516166054 is a wasteful number, since it uses less digits than its factorization.

165156516166054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467137 (or 1467130 counting only the distinct ones).

The product of its (nonzero) digits is 19440000, while the sum is 58.

The spelling of 165156516166054 in words is "one hundred sixty-five trillion, one hundred fifty-six billion, five hundred sixteen million, one hundred sixty-six thousand, fifty-four".