6720451255 has 16 divisors (see below), whose sum is σ = 9237634560. Its totient is φ = 4597801632.

The previous prime is 6720451211. The next prime is 6720451261. The reversal of 6720451255 is 5521540276.

It is a cyclic number.

It is not a de Polignac number, because 6720451255 - 2¹⁷ = 6720320183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203329 + ... + 234058.

It is an arithmetic number, because the mean of its divisors is an integer number (577352160).

Almost surely, 2^6720451255 is an apocalyptic number.

6720451255 is a deficient number, since it is larger than the sum of its proper divisors (2517183305).

6720451255 is a wasteful number, since it uses less digits than its factorization.

6720451255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437838.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 6720451255 is about 81978.3584551435. The cubic root of 6720451255 is about 1887.1198309232.

The spelling of 6720451255 in words is "six billion, seven hundred twenty million, four hundred fifty-one thousand, two hundred fifty-five".