16449513242 has 8 divisors (see below), whose sum is σ = 26125697556. Its totient is φ = 7740947392.

The previous prime is 16449513203. The next prime is 16449513247. The reversal of 16449513242 is 24231594461.

It can be written as a sum of positive squares in 2 ways, for example, as 15800741401 + 648771841 = 125701^2 + 25471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16449513242.

It is not an unprimeable number, because it can be changed into a prime (16449513247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241904573 + ... + 241904640.

Almost surely, 2^16449513242 is an apocalyptic number.

16449513242 is a deficient number, since it is larger than the sum of its proper divisors (9676184314).

16449513242 is a wasteful number, since it uses less digits than its factorization.

16449513242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483809232.

The product of its digits is 207360, while the sum is 41.

The spelling of 16449513242 in words is "sixteen billion, four hundred forty-nine million, five hundred thirteen thousand, two hundred forty-two".