16447535325 has 96 divisors (see below), whose sum is σ = 32757070080. Its totient is φ = 8042976000.

The previous prime is 16447535287. The next prime is 16447535329. The reversal of 16447535325 is 52353574461.

16447535325 is a `hidden beast` number, since 1 + 6 + 44 + 75 + 3 + 532 + 5 = 666.

It is not a de Polignac number, because 16447535325 - 2¹⁵ = 16447502557 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16447535329) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1318819 + ... + 1331231.

It is an arithmetic number, because the mean of its divisors is an integer number (341219480).

Almost surely, 2^16447535325 is an apocalyptic number.

16447535325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16447535325 is a deficient number, since it is larger than the sum of its proper divisors (16309534755).

16447535325 is a wasteful number, since it uses less digits than its factorization.

16447535325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12596 (or 12585 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 45.

The spelling of 16447535325 in words is "sixteen billion, four hundred forty-seven million, five hundred thirty-five thousand, three hundred twenty-five".