16645556060 has 48 divisors (see below), whose sum is σ = 39965612736. Its totient is φ = 5704722432.

The previous prime is 16645556023. The next prime is 16645556077. The reversal of 16645556060 is 6065554661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340094 + ... + 385946.

It is an arithmetic number, because the mean of its divisors is an integer number (832616932).

Almost surely, 2^16645556060 is an apocalyptic number.

16645556060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16645556060 is an abundant number, since it is smaller than the sum of its proper divisors (23320056676).

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

16645556060 is a wasteful number, since it uses less digits than its factorization.

16645556060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48462 (or 48460 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 16645556060 in words is "sixteen billion, six hundred forty-five million, five hundred fifty-six thousand, sixty".