6651266411 has 16 divisors (see below), whose sum is σ = 7086535680. Its totient is φ = 6233055840.

The previous prime is 6651266357. The next prime is 6651266443. The reversal of 6651266411 is 1146621566.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6651266411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6651266311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95405 + ... + 149681.

It is an arithmetic number, because the mean of its divisors is an integer number (442908480).

Almost surely, 2^6651266411 is an apocalyptic number.

6651266411 is a deficient number, since it is larger than the sum of its proper divisors (435269269).

6651266411 is a wasteful number, since it uses less digits than its factorization.

6651266411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54434.

The product of its digits is 51840, while the sum is 38.

The square root of 6651266411 is about 81555.2966458954. The cubic root of 6651266411 is about 1880.6217208665.

Adding to 6651266411 its reverse (1146621566), we get a palindrome (7797887977).

The spelling of 6651266411 in words is "six billion, six hundred fifty-one million, two hundred sixty-six thousand, four hundred eleven".