6651255272 has 32 divisors (see below), whose sum is σ = 12857011200. Its totient is φ = 3223404864.

The previous prime is 6651255263. The next prime is 6651255277. The reversal of 6651255272 is 2725521566.

It is not an unprimeable number, because it can be changed into a prime (6651255277) 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, 35129 + ... + 120567.

It is an arithmetic number, because the mean of its divisors is an integer number (401781600).

Almost surely, 2^6651255272 is an apocalyptic number.

It is an amenable number.

6651255272 is a deficient number, since it is larger than the sum of its proper divisors (6205755928).

6651255272 is a wasteful number, since it uses less digits than its factorization.

6651255272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85745 (or 85741 counting only the distinct ones).

The product of its digits is 252000, while the sum is 41.

The square root of 6651255272 is about 81555.2283547781. The cubic root of 6651255272 is about 1880.6206710285.

The spelling of 6651255272 in words is "six billion, six hundred fifty-one million, two hundred fifty-five thousand, two hundred seventy-two".