165363136230566 has 8 divisors (see below), whose sum is σ = 258829256708784. Its totient is φ = 79086717327640.

The previous prime is 165363136230559. The next prime is 165363136230581. The reversal of 165363136230566 is 665032631363561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×165363136230566² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1797425393765 + ... + 1797425393856.

It is an arithmetic number, because the mean of its divisors is an integer number (32353657088598).

Almost surely, 2^{165363136230566} is an apocalyptic number.

165363136230566 is a deficient number, since it is larger than the sum of its proper divisors (93466120478218).

165363136230566 is a wasteful number, since it uses less digits than its factorization.

165363136230566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3594850787646.

The product of its (nonzero) digits is 31492800, while the sum is 56.

The spelling of 165363136230566 in words is "one hundred sixty-five trillion, three hundred sixty-three billion, one hundred thirty-six million, two hundred thirty thousand, five hundred sixty-six".