6620023063729 has 2 divisors, whose sum is σ = 6620023063730. Its totient is φ = 6620023063728.

The previous prime is 6620023063663. The next prime is 6620023063741. The reversal of 6620023063729 is 9273603200266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5653704573504 + 966318490225 = 2377752^2 + 983015^2 .

It is a cyclic number.

It is not a de Polignac number, because 6620023063729 - 2¹¹ = 6620023061681 is a prime.

It is not a weakly prime, because it can be changed into another prime (6620023063229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3310011531864 + 3310011531865.

It is an arithmetic number, because the mean of its divisors is an integer number (3310011531865).

Almost surely, 2^{6620023063729} is an apocalyptic number.

It is an amenable number.

6620023063729 is a deficient number, since it is larger than the sum of its proper divisors (1).

6620023063729 is an equidigital number, since it uses as much as digits as its factorization.

6620023063729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 46.

The spelling of 6620023063729 in words is "six trillion, six hundred twenty billion, twenty-three million, sixty-three thousand, seven hundred twenty-nine".