165580452784 has 40 divisors (see below), whose sum is σ = 321860238912. Its totient is φ = 82520148480.

The previous prime is 165580452773. The next prime is 165580452797. The reversal of 165580452784 is 487254085561.

165580452784 is digitally balanced in base 2, 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 (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6959052 + ... + 6982804.

Almost surely, 2^165580452784 is an apocalyptic number.

It is an amenable number.

165580452784 is a deficient number, since it is larger than the sum of its proper divisors (156279786128).

165580452784 is a wasteful number, since it uses less digits than its factorization.

165580452784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25165 (or 25159 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 55.

The spelling of 165580452784 in words is "one hundred sixty-five billion, five hundred eighty million, four hundred fifty-two thousand, seven hundred eighty-four".