16212365516 has 12 divisors (see below), whose sum is σ = 28411661040. Its totient is φ = 8094748080.

The previous prime is 16212365483. The next prime is 16212365549. The reversal of 16212365516 is 61556321261.

It is an interprime number because it is at equal distance from previous prime (16212365483) and next prime (16212365549).

It is a self number, because there is not a number n which added to its sum of digits gives 16212365516.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2855480 + ... + 2861151.

It is an arithmetic number, because the mean of its divisors is an integer number (2367638420).

Almost surely, 2^16212365516 is an apocalyptic number.

It is an amenable number.

16212365516 is a deficient number, since it is larger than the sum of its proper divisors (12199295524).

16212365516 is a wasteful number, since it uses less digits than its factorization.

16212365516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5717344 (or 5717342 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

Adding to 16212365516 its reverse (61556321261), we get a palindrome (77768686777).

The spelling of 16212365516 in words is "sixteen billion, two hundred twelve million, three hundred sixty-five thousand, five hundred sixteen".