16136340225 has 24 divisors (see below), whose sum is σ = 27598709760. Its totient is φ = 8309286720.

The previous prime is 16136340221. The next prime is 16136340247. The reversal of 16136340225 is 52204363161.

It is not a de Polignac number, because 16136340225 - 2² = 16136340221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16136340221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3707329 + ... + 3711678.

It is an arithmetic number, because the mean of its divisors is an integer number (1149946240).

Almost surely, 2^16136340225 is an apocalyptic number.

16136340225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16136340225 is a deficient number, since it is larger than the sum of its proper divisors (11462369535).

16136340225 is a wasteful number, since it uses less digits than its factorization.

16136340225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7419049 (or 7419044 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 16136340225 in words is "sixteen billion, one hundred thirty-six million, three hundred forty thousand, two hundred twenty-five".