165984339461042 has 16 divisors (see below), whose sum is σ = 249680900464512. Its totient is φ = 82757419707600.

The previous prime is 165984339460997. The next prime is 165984339461069. The reversal of 165984339461042 is 240164933489561.

It is a self number, because there is not a number n which added to its sum of digits gives 165984339461042.

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, 4706084 + ... + 18817967.

It is an arithmetic number, because the mean of its divisors is an integer number (15605056279032).

Almost surely, 2^{165984339461042} is an apocalyptic number.

165984339461042 is a deficient number, since it is larger than the sum of its proper divisors (83696561003470).

165984339461042 is a wasteful number, since it uses less digits than its factorization.

165984339461042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23534033.

The product of its (nonzero) digits is 134369280, while the sum is 65.

The spelling of 165984339461042 in words is "one hundred sixty-five trillion, nine hundred eighty-four billion, three hundred thirty-nine million, four hundred sixty-one thousand, forty-two".