16555272646360 has 128 divisors (see below), whose sum is σ = 43028034416640. Its totient is φ = 5615165952000.

The previous prime is 16555272646349. The next prime is 16555272646387. The reversal of 16555272646360 is 6364627255561.

It is a happy number.

16555272646360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 16555272646295 and 16555272646304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63723525 + ... + 63982795.

It is an arithmetic number, because the mean of its divisors is an integer number (336156518880).

Almost surely, 2^{16555272646360} is an apocalyptic number.

16555272646360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16555272646360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21514017208320).

16555272646360 is an abundant number, since it is smaller than the sum of its proper divisors (26472761770280).

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

16555272646360 is a wasteful number, since it uses less digits than its factorization.

16555272646360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261737 (or 261733 counting only the distinct ones).

The product of its (nonzero) digits is 54432000, while the sum is 58.

The spelling of 16555272646360 in words is "sixteen trillion, five hundred fifty-five billion, two hundred seventy-two million, six hundred forty-six thousand, three hundred sixty".