16334629249 has 3 divisors (see below), whose sum is σ = 16334757057. Its totient is φ = 16334501442.

The previous prime is 16334629247. The next prime is 16334629273. The reversal of 16334629249 is 94292643361.

It is a happy number.

The square root of 16334629249 is 127807.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94292643361 = 7 ⋅13470377623.

It is not a de Polignac number, because 16334629249 - 2¹ = 16334629247 is a prime.

It is a super-2 number, since 2×16334629249² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16334629243) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 63904 + ... + 191710.

It is an arithmetic number, because the mean of its divisors is an integer number (5444919019).

Almost surely, 2^16334629249 is an apocalyptic number.

16334629249 is the 127807-th square number.

16334629249 is the 63904-th centered octagonal number.

It is an amenable number.

16334629249 is a deficient number, since it is larger than the sum of its proper divisors (127808).

16334629249 is an frugal number, since it uses more digits than its factorization.

16334629249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255614 (or 127807 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 49.

Multiplying 16334629249 by its sum of digits (49), we get a square (800396833201 = 894649²).

The spelling of 16334629249 in words is "sixteen billion, three hundred thirty-four million, six hundred twenty-nine thousand, two hundred forty-nine".