165016487 has 4 divisors (see below), whose sum is σ = 165064776. Its totient is φ = 164968200.

The previous prime is 165016471. The next prime is 165016493. The reversal of 165016487 is 784610561.

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 165016487 - 2⁴ = 165016471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165016487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165016447) 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, 18593 + ... + 25994.

It is an arithmetic number, because the mean of its divisors is an integer number (41266194).

Almost surely, 2^165016487 is an apocalyptic number.

165016487 is a deficient number, since it is larger than the sum of its proper divisors (48289).

165016487 is an equidigital number, since it uses as much as digits as its factorization.

165016487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48288.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 165016487 is about 12845.8743182393. The cubic root of 165016487 is about 548.4989229188.

The spelling of 165016487 in words is "one hundred sixty-five million, sixteen thousand, four hundred eighty-seven".