16442772560 has 40 divisors (see below), whose sum is σ = 38273003496. Its totient is φ = 6569615360.

The previous prime is 16442772551. The next prime is 16442772581. The reversal of 16442772560 is 6527724461.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3067387456 + 13375385104 = 55384^2 + 115652^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×16442772560³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46169 + ... + 187128.

Almost surely, 2^16442772560 is an apocalyptic number.

16442772560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16442772560 is an abundant number, since it is smaller than the sum of its proper divisors (21830230936).

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

16442772560 is a wasteful number, since it uses less digits than its factorization.

16442772560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234191 (or 234185 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 16442772560 in words is "sixteen billion, four hundred forty-two million, seven hundred seventy-two thousand, five hundred sixty".