165523353 has 8 divisors (see below), whose sum is σ = 227817216. Its totient is φ = 106789200.

The previous prime is 165523333. The next prime is 165523361. The reversal of 165523353 is 353325561.

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

It is not a de Polignac number, because 165523353 - 2⁵ = 165523321 is a prime.

It is a super-4 number, since 4×165523353⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (165523313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 889818 + ... + 890003.

It is an arithmetic number, because the mean of its divisors is an integer number (28477152).

Almost surely, 2^165523353 is an apocalyptic number.

It is an amenable number.

165523353 is a deficient number, since it is larger than the sum of its proper divisors (62293863).

165523353 is a wasteful number, since it uses less digits than its factorization.

165523353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779855.

The product of its digits is 40500, while the sum is 33.

The square root of 165523353 is about 12865.5879383727. The cubic root of 165523353 is about 549.0599401710.

The spelling of 165523353 in words is "one hundred sixty-five million, five hundred twenty-three thousand, three hundred fifty-three".