165919854102 has 16 divisors (see below), whose sum is σ = 332014291632. Its totient is φ = 55277520800.

The previous prime is 165919854041. The next prime is 165919854167. The reversal of 165919854102 is 201458919561.

165919854102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7261953 + ... + 7284764.

It is an arithmetic number, because the mean of its divisors is an integer number (20750893227).

Almost surely, 2^165919854102 is an apocalyptic number.

165919854102 is an abundant number, since it is smaller than the sum of its proper divisors (166094437530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165919854102 is a wasteful number, since it uses less digits than its factorization.

165919854102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14548623.

The product of its (nonzero) digits is 777600, while the sum is 51.

The spelling of 165919854102 in words is "one hundred sixty-five billion, nine hundred nineteen million, eight hundred fifty-four thousand, one hundred two".