16502145215 has 16 divisors (see below), whose sum is σ = 20445332736. Its totient is φ = 12773376000.

The previous prime is 16502145211. The next prime is 16502145223. The reversal of 16502145215 is 51254120561.

It is not a de Polignac number, because 16502145215 - 2² = 16502145211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16502145211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1529279 + ... + 1540031.

It is an arithmetic number, because the mean of its divisors is an integer number (1277833296).

Almost surely, 2^16502145215 is an apocalyptic number.

16502145215 is a deficient number, since it is larger than the sum of its proper divisors (3943187521).

16502145215 is a wasteful number, since it uses less digits than its factorization.

16502145215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20690.

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 16502145215 its reverse (51254120561), we get a palindrome (67756265776).

The spelling of 16502145215 in words is "sixteen billion, five hundred two million, one hundred forty-five thousand, two hundred fifteen".