16230505201 has 3 divisors (see below), whose sum is σ = 16230632601. Its totient is φ = 16230377802.

The previous prime is 16230505189. The next prime is 16230505219. The reversal of 16230505201 is 10250503261.

The square root of 16230505201 is 127399.

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: 10250503261 = 953 ⋅10756037.

It is a de Polignac number, because none of the positive numbers 2^k-16230505201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16230505801) 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, 63700 + ... + 191098.

It is an arithmetic number, because the mean of its divisors is an integer number (5410210867).

Almost surely, 2^16230505201 is an apocalyptic number.

16230505201 is the 127399-th square number.

16230505201 is the 63700-th centered octagonal number.

It is an amenable number.

16230505201 is a deficient number, since it is larger than the sum of its proper divisors (127400).

16230505201 is an frugal number, since it uses more digits than its factorization.

16230505201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254798 (or 127399 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Multiplying 16230505201 by its sum of digits (25), we get a square (405762630025 = 636995²).

The spelling of 16230505201 in words is "sixteen billion, two hundred thirty million, five hundred five thousand, two hundred one".