12016651 has 12 divisors (see below), whose sum is σ = 12614952. Its totient is φ = 11442816.

The previous prime is 12016633. The next prime is 12016663. The reversal of 12016651 is 15661021.

It is not a de Polignac number, because 12016651 - 2⁵ = 12016619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12016621) 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 11 ways as a sum of consecutive naturals, for example, 123835 + ... + 123931.

It is an arithmetic number, because the mean of its divisors is an integer number (1051246).

Almost surely, 2^12016651 is an apocalyptic number.

12016651 is a deficient number, since it is larger than the sum of its proper divisors (598301).

12016651 is an frugal number, since it uses more digits than its factorization.

12016651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 12016651 is about 3466.5041468315. The cubic root of 12016651 is about 229.0486919972.

Adding to 12016651 its reverse (15661021), we get a palindrome (27677672).

The spelling of 12016651 in words is "twelve million, sixteen thousand, six hundred fifty-one".