165730628463 has 4 divisors (see below), whose sum is σ = 220974171288. Its totient is φ = 110487085640.

The previous prime is 165730628443. The next prime is 165730628473. The reversal of 165730628463 is 364826037561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165730628463 - 2²⁰ = 165729579887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165730628443) 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, 27621771408 + ... + 27621771413.

It is an arithmetic number, because the mean of its divisors is an integer number (55243542822).

Almost surely, 2^165730628463 is an apocalyptic number.

165730628463 is a deficient number, since it is larger than the sum of its proper divisors (55243542825).

165730628463 is an equidigital number, since it uses as much as digits as its factorization.

165730628463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55243542824.

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 165730628463 in words is "one hundred sixty-five billion, seven hundred thirty million, six hundred twenty-eight thousand, four hundred sixty-three".