16656112025 has 48 divisors (see below), whose sum is σ = 24977448960. Its totient is φ = 10763150400.

The previous prime is 16656112013. The next prime is 16656112027. The reversal of 16656112025 is 52021165661.

It is not a de Polignac number, because 16656112025 - 2¹² = 16656107929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (16656112027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 621962 + ... + 648188.

It is an arithmetic number, because the mean of its divisors is an integer number (520363520).

Almost surely, 2^16656112025 is an apocalyptic number.

It is an amenable number.

16656112025 is a deficient number, since it is larger than the sum of its proper divisors (8321336935).

16656112025 is a wasteful number, since it uses less digits than its factorization.

16656112025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26454 (or 26449 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

Adding to 16656112025 its reverse (52021165661), we get a palindrome (68677277686).

The spelling of 16656112025 in words is "sixteen billion, six hundred fifty-six million, one hundred twelve thousand, twenty-five".