6651132011 has 4 divisors (see below), whose sum is σ = 6760167024. Its totient is φ = 6542097000.

The previous prime is 6651131989. The next prime is 6651132031. The reversal of 6651132011 is 1102311566.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6651132011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6651132031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54517415 + ... + 54517536.

It is an arithmetic number, because the mean of its divisors is an integer number (1690041756).

Almost surely, 2^6651132011 is an apocalyptic number.

6651132011 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

6651132011 is a deficient number, since it is larger than the sum of its proper divisors (109035013).

6651132011 is a wasteful number, since it uses less digits than its factorization.

6651132011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109035012.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 6651132011 is about 81554.4726609154. The cubic root of 6651132011 is about 1880.6090537419.

Adding to 6651132011 its reverse (1102311566), we get a palindrome (7753443577).

The spelling of 6651132011 in words is "six billion, six hundred fifty-one million, one hundred thirty-two thousand, eleven".