12651063511 has 8 divisors (see below), whose sum is σ = 12685881600. Its totient is φ = 12616268280.

The previous prime is 12651063449. The next prime is 12651063539. The reversal of 12651063511 is 11536015621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12651063511 - 2¹¹ = 12651061463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12651063011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163730 + ... + 2169568.

It is an arithmetic number, because the mean of its divisors is an integer number (1585735200).

Almost surely, 2^12651063511 is an apocalyptic number.

12651063511 is a deficient number, since it is larger than the sum of its proper divisors (34818089).

12651063511 is an equidigital number, since it uses as much as digits as its factorization.

12651063511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11429.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 12651063511 in words is "twelve billion, six hundred fifty-one million, sixty-three thousand, five hundred eleven".