16029332449 has 9 divisors (see below), whose sum is σ = 17358988563. Its totient is φ = 14794787592.

The previous prime is 16029332447. The next prime is 16029332467. The reversal of 16029332449 is 94423392061.

The square root of 16029332449 is 126607.

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

It can be written as a sum of positive squares in only one way, i.e., 2371203025 + 13658129424 = 48695^2 + 116868^2 .

It is not a de Polignac number, because 16029332449 - 2¹ = 16029332447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16029332443) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1641022 + ... + 1650760.

It is an arithmetic number, because the mean of its divisors is an integer number (1928776507).

Almost surely, 2^16029332449 is an apocalyptic number.

16029332449 is the 126607-th square number.

16029332449 is the 63304-th centered octagonal number.

It is an amenable number.

16029332449 is a deficient number, since it is larger than the sum of its proper divisors (1329656114).

16029332449 is an frugal number, since it uses more digits than its factorization.

16029332449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19504 (or 9752 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 16029332449 in words is "sixteen billion, twenty-nine million, three hundred thirty-two thousand, four hundred forty-nine".