6651255256 has 8 divisors (see below), whose sum is σ = 12471103620. Its totient is φ = 3325627624.

The previous prime is 6651255239. The next prime is 6651255257. The reversal of 6651255256 is 6525521566.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6651255257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415703446 + ... + 415703461.

Almost surely, 2^6651255256 is an apocalyptic number.

It is an amenable number.

6651255256 is a deficient number, since it is larger than the sum of its proper divisors (5819848364).

6651255256 is a wasteful number, since it uses less digits than its factorization.

6651255256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831406913 (or 831406909 counting only the distinct ones).

The product of its digits is 540000, while the sum is 43.

The square root of 6651255256 is about 81555.2282566851. The cubic root of 6651255256 is about 1880.6206695205.

The spelling of 6651255256 in words is "six billion, six hundred fifty-one million, two hundred fifty-five thousand, two hundred fifty-six".