16630124780025 has 27 divisors (see below), whose sum is σ = 29786510835471. Its totient is φ = 8869367258640.

The previous prime is 16630124779993. The next prime is 16630124780047. The reversal of 16630124780025 is 52008742103661.

The square root of 16630124780025 is 4078005.

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

16630124780025 is a `hidden beast` number, since 1 + 6 + 6 + 301 + 247 + 80 + 0 + 25 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5986844920809 + 10643279859216 = 2446803^2 + 3262404^2 .

It is not a de Polignac number, because 16630124780025 - 2⁵ = 16630124779993 is a prime.

It is a super-2 number, since 2×16630124780025² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 61034142 + ... + 61306008.

Almost surely, 2^{16630124780025} is an apocalyptic number.

16630124780025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16630124780025 is the 4078005-th square number.

16630124780025 is the 2039003-rd centered octagonal number.

It is an amenable number.

16630124780025 is a deficient number, since it is larger than the sum of its proper divisors (13156386055446).

16630124780025 is an frugal number, since it uses more digits than its factorization.

16630124780025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543750 (or 271875 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

Adding to 16630124780025 its reverse (52008742103661), we get a palindrome (68638866883686).

The spelling of 16630124780025 in words is "sixteen trillion, six hundred thirty billion, one hundred twenty-four million, seven hundred eighty thousand, twenty-five".