16616276440 has 32 divisors (see below), whose sum is σ = 37595502000. Its totient is φ = 6609376384.

The previous prime is 16616276407. The next prime is 16616276447. The reversal of 16616276440 is 4467261661.

16616276440 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 2×16616276440² (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 (16616276447) 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 7 ways as a sum of consecutive naturals, for example, 1153195 + ... + 1167514.

Almost surely, 2^16616276440 is an apocalyptic number.

16616276440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16616276440 is an abundant number, since it is smaller than the sum of its proper divisors (20979225560).

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

16616276440 is a wasteful number, since it uses less digits than its factorization.

16616276440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320899 (or 2320895 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 16616276440 in words is "sixteen billion, six hundred sixteen million, two hundred seventy-six thousand, four hundred forty".