16425666136 has 64 divisors (see below), whose sum is σ = 35792668800. Its totient is φ = 6987974400.

The previous prime is 16425666133. The next prime is 16425666163. The reversal of 16425666136 is 63166652461.

It is a happy number.

16425666136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16425666136² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16425666133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79596 + ... + 197956.

It is an arithmetic number, because the mean of its divisors is an integer number (559260450).

Almost surely, 2^16425666136 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 16425666136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17896334400).

16425666136 is an abundant number, since it is smaller than the sum of its proper divisors (19367002664).

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

16425666136 is a wasteful number, since it uses less digits than its factorization.

16425666136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118480 (or 118476 counting only the distinct ones).

The product of its digits is 933120, while the sum is 46.

The spelling of 16425666136 in words is "sixteen billion, four hundred twenty-five million, six hundred sixty-six thousand, one hundred thirty-six".