16352527129 has 3 divisors (see below), whose sum is σ = 16352655007. Its totient is φ = 16352399252.

The previous prime is 16352527127. The next prime is 16352527153. The reversal of 16352527129 is 92172525361.

It is a happy number.

The square root of 16352527129 is 127877.

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.

It can be written as a sum of positive squares in only one way, i.e., 185913225 + 16166613904 = 13635^2 + 127148^2 .

It is not a de Polignac number, because 16352527129 - 2¹ = 16352527127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16352527127) 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, 63939 + ... + 191815.

Almost surely, 2^16352527129 is an apocalyptic number.

16352527129 is the 127877-th square number.

16352527129 is the 63939-th centered octagonal number.

It is an amenable number.

16352527129 is a deficient number, since it is larger than the sum of its proper divisors (127878).

16352527129 is an frugal number, since it uses more digits than its factorization.

16352527129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255754 (or 127877 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The spelling of 16352527129 in words is "sixteen billion, three hundred fifty-two million, five hundred twenty-seven thousand, one hundred twenty-nine".