16442506601325 has 48 divisors (see below), whose sum is σ = 34520564133760. Its totient is φ = 7516574444160.

The previous prime is 16442506601321. The next prime is 16442506601327. The reversal of 16442506601325 is 52310660524461.

16442506601325 is a `hidden beast` number, since 1 + 6 + 4 + 4 + 2 + 5 + 0 + 6 + 601 + 32 + 5 = 666.

It is not a de Polignac number, because 16442506601325 - 2² = 16442506601321 is a prime.

It is a super-3 number, since 3×16442506601325³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442506601321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1739943064 + ... + 1739952513.

Almost surely, 2^{16442506601325} is an apocalyptic number.

16442506601325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16442506601325 is an abundant number, since it is smaller than the sum of its proper divisors (18078057532435).

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

16442506601325 is a wasteful number, since it uses less digits than its factorization.

16442506601325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479895603 (or 3479895592 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 16442506601325 in words is "sixteen trillion, four hundred forty-two billion, five hundred six million, six hundred one thousand, three hundred twenty-five".