16201444626 has 144 divisors (see below), whose sum is σ = 38101819392. Its totient is φ = 4967222400.

The previous prime is 16201444621. The next prime is 16201444627. The reversal of 16201444626 is 62644410261.

16201444626 is a `hidden beast` number, since 1 + 6 + 20 + 1 + 4 + 4 + 4 + 626 = 666.

It is not an unprimeable number, because it can be changed into a prime (16201444621) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 42301231 + ... + 42301613.

It is an arithmetic number, because the mean of its divisors is an integer number (264595968).

Almost surely, 2^16201444626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16201444626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19050909696).

16201444626 is an abundant number, since it is smaller than the sum of its proper divisors (21900374766).

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

16201444626 is a wasteful number, since it uses less digits than its factorization.

16201444626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

Adding to 16201444626 its reverse (62644410261), we get a palindrome (78845854887).

The spelling of 16201444626 in words is "sixteen billion, two hundred one million, four hundred forty-four thousand, six hundred twenty-six".