16676156486025 has 81 divisors (see below), whose sum is σ = 30373335127317. Its totient is φ = 8746187515200.

The previous prime is 16676156485999. The next prime is 16676156486029. The reversal of 16676156486025 is 52068465167661.

It is a happy number.

The square root of 16676156486025 is 4083645.

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

16676156486025 is a `hidden beast` number, since 1 + 6 + 6 + 7 + 6 + 1 + 564 + 8 + 60 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7681339739529 + 8994816746496 = 2771523^2 + 2999136^2 .

It is not a de Polignac number, because 16676156486025 - 2¹⁷ = 16676156354953 is a prime.

It is a super-3 number, since 3×16676156486025³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16676156486029) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3736532944 + ... + 3736537406.

Almost surely, 2^{16676156486025} is an apocalyptic number.

16676156486025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16676156486025 is the 4083645-th square number.

16676156486025 is the 2041823-rd centered octagonal number.

It is an amenable number.

16676156486025 is a deficient number, since it is larger than the sum of its proper divisors (13697178641292).

16676156486025 is an frugal number, since it uses more digits than its factorization.

16676156486025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9064 (or 4532 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 63.

The spelling of 16676156486025 in words is "sixteen trillion, six hundred seventy-six billion, one hundred fifty-six million, four hundred eighty-six thousand, twenty-five".