6720663380292 has 36 divisors (see below), whose sum is σ = 17086542078060. Its totient is φ = 2227271869632.

The previous prime is 6720663380273. The next prime is 6720663380429. The reversal of 6720663380292 is 2920833660276.

6720663380292 is a `hidden beast` number, since 67 + 206 + 63 + 38 + 0 + 292 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6332903108676 + 387760271616 = 2516526^2 + 622704^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 539546067 + ... + 539558522.

It is an arithmetic number, because the mean of its divisors is an integer number (474626168835).

Almost surely, 2^{6720663380292} is an apocalyptic number.

It is an amenable number.

6720663380292 is an abundant number, since it is smaller than the sum of its proper divisors (10365878697768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6720663380292 is a wasteful number, since it uses less digits than its factorization.

6720663380292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079104772 (or 1079104767 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 6720663380292 in words is "six trillion, seven hundred twenty billion, six hundred sixty-three million, three hundred eighty thousand, two hundred ninety-two".