16816546946925 has 72 divisors (see below), whose sum is σ = 33002001620640. Its totient is φ = 8117872329600.

The previous prime is 16816546946893. The next prime is 16816546946989. The reversal of 16816546946925 is 52964964561861.

16816546946925 is a `hidden beast` number, since 1 + 6 + 8 + 16 + 546 + 9 + 4 + 69 + 2 + 5 = 666.

It is not a de Polignac number, because 16816546946925 - 2⁵ = 16816546946893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14268519 + ... + 15402068.

It is an arithmetic number, because the mean of its divisors is an integer number (458361133620).

Almost surely, 2^{16816546946925} is an apocalyptic number.

16816546946925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16816546946925 is a deficient number, since it is larger than the sum of its proper divisors (16185454673715).

16816546946925 is a wasteful number, since it uses less digits than its factorization.

16816546946925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29670843 (or 29670835 counting only the distinct ones).

The product of its digits is 671846400, while the sum is 72.

The spelling of 16816546946925 in words is "sixteen trillion, eight hundred sixteen billion, five hundred forty-six million, nine hundred forty-six thousand, nine hundred twenty-five".