165628015 has 8 divisors (see below), whose sum is σ = 227147040. Its totient is φ = 113573472.

The previous prime is 165628013. The next prime is 165628027. The reversal of 165628015 is 510826561.

It is a happy number.

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 165628015 - 2¹ = 165628013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165628013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2366080 + ... + 2366149.

It is an arithmetic number, because the mean of its divisors is an integer number (28393380).

Almost surely, 2^165628015 is an apocalyptic number.

165628015 is a deficient number, since it is larger than the sum of its proper divisors (61519025).

165628015 is an equidigital number, since it uses as much as digits as its factorization.

165628015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732241.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 165628015 is about 12869.6548127757. The cubic root of 165628015 is about 549.1756410728.

The spelling of 165628015 in words is "one hundred sixty-five million, six hundred twenty-eight thousand, fifteen".