16429772297 has 4 divisors (see below), whose sum is σ = 16430857236. Its totient is φ = 16428687360.

The previous prime is 16429772257. The next prime is 16429772311. The reversal of 16429772297 is 79227792461.

16429772297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79227792461 = 2081 ⋅38071981.

It can be written as a sum of positive squares in 2 ways, for example, as 11126874256 + 5302898041 = 105484^2 + 72821^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16429772297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16429772237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519428 + ... + 550149.

It is an arithmetic number, because the mean of its divisors is an integer number (4107714309).

Almost surely, 2^16429772297 is an apocalyptic number.

It is an amenable number.

16429772297 is a deficient number, since it is larger than the sum of its proper divisors (1084939).

16429772297 is a wasteful number, since it uses less digits than its factorization.

16429772297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084938.

The product of its digits is 5334336, while the sum is 56.

The spelling of 16429772297 in words is "sixteen billion, four hundred twenty-nine million, seven hundred seventy-two thousand, two hundred ninety-seven".