165383939154 has 32 divisors (see below), whose sum is σ = 378032893056. Its totient is φ = 47250996480.

The previous prime is 165383939143. The next prime is 165383939197. The reversal of 165383939154 is 451939383561.

165383939154 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 (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 165383939094 and 165383939103.

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, 1989594 + ... + 2071050.

It is an arithmetic number, because the mean of its divisors is an integer number (11813527908).

Almost surely, 2^165383939154 is an apocalyptic number.

165383939154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165383939154 is an abundant number, since it is smaller than the sum of its proper divisors (212648953902).

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

165383939154 is a wasteful number, since it uses less digits than its factorization.

165383939154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129810.

The product of its digits is 10497600, while the sum is 57.

The spelling of 165383939154 in words is "one hundred sixty-five billion, three hundred eighty-three million, nine hundred thirty-nine thousand, one hundred fifty-four".