16137228212 has 72 divisors (see below), whose sum is σ = 34287873480. Its totient is φ = 6619791360.

The previous prime is 16137228209. The next prime is 16137228229. The reversal of 16137228212 is 21282273161.

16137228212 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in 4 ways, for example, as 98525476 + 16038702736 = 9926^2 + 126644^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 406964 + ... + 444852.

It is an arithmetic number, because the mean of its divisors is an integer number (476220465).

Almost surely, 2^16137228212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16137228212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17143936740).

16137228212 is an abundant number, since it is smaller than the sum of its proper divisors (18150645268).

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

16137228212 is a wasteful number, since it uses less digits than its factorization.

16137228212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38001 (or 37992 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The spelling of 16137228212 in words is "sixteen billion, one hundred thirty-seven million, two hundred twenty-eight thousand, two hundred twelve".