165928783 has 8 divisors (see below), whose sum is σ = 169643952. Its totient is φ = 162250176.

The previous prime is 165928769. The next prime is 165928793. The reversal of 165928783 is 387829561.

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

It is a cyclic number.

It is not a de Polignac number, because 165928783 - 2¹³ = 165920591 is a prime.

It is a super-2 number, since 2×165928783² = 55064722055722178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165928793) by changing a digit.

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, 141 + ... + 18217.

It is an arithmetic number, because the mean of its divisors is an integer number (21205494).

Almost surely, 2^165928783 is an apocalyptic number.

165928783 is a deficient number, since it is larger than the sum of its proper divisors (3715169).

165928783 is a wasteful number, since it uses less digits than its factorization.

165928783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18281.

The product of its digits is 725760, while the sum is 49.

The square root of 165928783 is about 12881.3346746368. The cubic root of 165928783 is about 549.5078605920.

The spelling of 165928783 in words is "one hundred sixty-five million, nine hundred twenty-eight thousand, seven hundred eighty-three".