6720961063 has 2 divisors, whose sum is σ = 6720961064. Its totient is φ = 6720961062.

The previous prime is 6720961061. The next prime is 6720961073. The reversal of 6720961063 is 3601690276.

6720961063 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6720961063 - 2¹ = 6720961061 is a prime.

It is a super-2 number, since 2×6720961063² = 90342635220724179938, which contains 22 as substring.

Together with 6720961061, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6720961061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3360480531 + 3360480532.

It is an arithmetic number, because the mean of its divisors is an integer number (3360480532).

Almost surely, 2^6720961063 is an apocalyptic number.

6720961063 is a deficient number, since it is larger than the sum of its proper divisors (1).

6720961063 is an equidigital number, since it uses as much as digits as its factorization.

6720961063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 6720961063 is about 81981.4678021808. The cubic root of 6720961063 is about 1887.1675481783.

The spelling of 6720961063 in words is "six billion, seven hundred twenty million, nine hundred sixty-one thousand, sixty-three".