165564455464 has 16 divisors (see below), whose sum is σ = 310904431200. Its totient is φ = 82656607152.

The previous prime is 165564455431. The next prime is 165564455467. The reversal of 165564455464 is 464554465561.

It is not an unprimeable number, because it can be changed into a prime (165564455467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15696972 + ... + 15707515.

It is an arithmetic number, because the mean of its divisors is an integer number (19431526950).

Almost surely, 2^165564455464 is an apocalyptic number.

It is an amenable number.

165564455464 is a deficient number, since it is larger than the sum of its proper divisors (145339975736).

165564455464 is a wasteful number, since it uses less digits than its factorization.

165564455464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31405152 (or 31405148 counting only the distinct ones).

The product of its digits is 34560000, while the sum is 55.

The spelling of 165564455464 in words is "one hundred sixty-five billion, five hundred sixty-four million, four hundred fifty-five thousand, four hundred sixty-four".