18080822144025 has 81 divisors (see below), whose sum is σ = 32883102282303. Its totient is φ = 9496933063200.

The previous prime is 18080822143997. The next prime is 18080822144101. The reversal of 18080822144025 is 52044122808081.

It is a happy number.

The square root of 18080822144025 is 4252155.

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

18080822144025 is a `hidden beast` number, since 1 + 80 + 80 + 82 + 2 + 14 + 402 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6509095971849 + 11571726172176 = 2551293^2 + 3401724^2 .

It is not a de Polignac number, because 18080822144025 - 2¹⁵ = 18080822111257 is a prime.

It is a super-2 number, since 2×18080822144025² (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 polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 4273413660 + ... + 4273417890.

Almost surely, 2^{18080822144025} is an apocalyptic number.

18080822144025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18080822144025 is the 4252155-th square number.

18080822144025 is the 2126078-th centered octagonal number.

It is an amenable number.

18080822144025 is a deficient number, since it is larger than the sum of its proper divisors (14802280138278).

18080822144025 is an frugal number, since it uses more digits than its factorization.

18080822144025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8612 (or 4306 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 45.

The spelling of 18080822144025 in words is "eighteen trillion, eighty billion, eight hundred twenty-two million, one hundred forty-four thousand, twenty-five".