16516346365 has 16 divisors (see below), whose sum is σ = 20506913280. Its totient is φ = 12755050560.

The previous prime is 16516346351. The next prime is 16516346389. The reversal of 16516346365 is 56364361561.

It is a happy number.

It is not a de Polignac number, because 16516346365 - 2¹⁹ = 16515822077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1390582 + ... + 1402408.

It is an arithmetic number, because the mean of its divisors is an integer number (1281682080).

Almost surely, 2^16516346365 is an apocalyptic number.

It is an amenable number.

16516346365 is a deficient number, since it is larger than the sum of its proper divisors (3990566915).

16516346365 is a wasteful number, since it uses less digits than its factorization.

16516346365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21492.

The product of its digits is 1166400, while the sum is 46.

The spelling of 16516346365 in words is "sixteen billion, five hundred sixteen million, three hundred forty-six thousand, three hundred sixty-five".