16846845225 has 24 divisors (see below), whose sum is σ = 31832516160. Its totient is φ = 7701414720.

The previous prime is 16846845221. The next prime is 16846845229. The reversal of 16846845225 is 52254864861.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16846845221) and next prime (16846845229).

It is not a de Polignac number, because 16846845225 - 2² = 16846845221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16846845221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16044090 + ... + 16045139.

It is an arithmetic number, because the mean of its divisors is an integer number (1326354840).

Almost surely, 2^16846845225 is an apocalyptic number.

16846845225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16846845225 is a deficient number, since it is larger than the sum of its proper divisors (14985670935).

16846845225 is a wasteful number, since it uses less digits than its factorization.

16846845225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32089249 (or 32089244 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 51.

The spelling of 16846845225 in words is "sixteen billion, eight hundred forty-six million, eight hundred forty-five thousand, two hundred twenty-five".