16265211312 has 180 divisors, whose sum is σ = 51925132680. Its totient is φ = 4373655552.

The previous prime is 16265211301. The next prime is 16265211317. The reversal of 16265211312 is 21311256261.

It is a super-2 number, since 2×16265211312² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16265211312.

It is not an unprimeable number, because it can be changed into a prime (16265211317) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 667764 + ... + 691692.

Almost surely, 2^16265211312 is an apocalyptic number.

16265211312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16265211312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25962566340).

16265211312 is an abundant number, since it is smaller than the sum of its proper divisors (35659921368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16265211312 is a wasteful number, since it uses less digits than its factorization.

16265211312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23988 (or 23958 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

Adding to 16265211312 its reverse (21311256261), we get a palindrome (37576467573).

The spelling of 16265211312 in words is "sixteen billion, two hundred sixty-five million, two hundred eleven thousand, three hundred twelve".