165256516264042 has 32 divisors (see below), whose sum is σ = 298213598822400. Its totient is φ = 67095201592368.

The previous prime is 165256516264003. The next prime is 165256516264141. The reversal of 165256516264042 is 240462615652561.

165256516264042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 5941143 + ... + 19126165.

It is an arithmetic number, because the mean of its divisors is an integer number (9319174963200).

Almost surely, 2^{165256516264042} is an apocalyptic number.

165256516264042 is a deficient number, since it is larger than the sum of its proper divisors (132957082558358).

165256516264042 is a wasteful number, since it uses less digits than its factorization.

165256516264042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13232170.

The product of its (nonzero) digits is 20736000, while the sum is 55.

The spelling of 165256516264042 in words is "one hundred sixty-five trillion, two hundred fifty-six billion, five hundred sixteen million, two hundred sixty-four thousand, forty-two".