16560601344 has 243 divisors, whose sum is σ = 55689338523. Its totient is φ = 4719246336.

The previous prime is 16560601333. The next prime is 16560601349. The reversal of 16560601344 is 44310606561.

It is a happy number.

The square root of 16560601344 is 128688.

It is a perfect power (a square), and thus also a powerful number.

16560601344 is a `hidden beast` number, since 1 + 6 + 5 + 6 + 0 + 601 + 3 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 16560601299 and 16560601308.

It is not an unprimeable number, because it can be changed into a prime (16560601349) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 43238977 + ... + 43239359.

Almost surely, 2^16560601344 is an apocalyptic number.

16560601344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16560601344 is the 128688-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16560601344

16560601344 is an abundant number, since it is smaller than the sum of its proper divisors (39128737179).

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

16560601344 is an frugal number, since it uses more digits than its factorization.

16560601344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Multiplying 16560601344 by its sum of digits (36), we get a square (596181648384 = 772128²).

16560601344 divided by its sum of digits (36) gives a square (460016704 = 21448²).

The spelling of 16560601344 in words is "sixteen billion, five hundred sixty million, six hundred one thousand, three hundred forty-four".