6620531038 has 32 divisors (see below), whose sum is σ = 11560055040. Its totient is φ = 2811879360.

The previous prime is 6620531033. The next prime is 6620531041. The reversal of 6620531038 is 8301350266.

It is a junction number, because it is equal to n+sod(n) for n = 6620530994 and 6620531012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620531033) by changing a digit.

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, 77970 + ... + 138997.

It is an arithmetic number, because the mean of its divisors is an integer number (361251720).

Almost surely, 2^6620531038 is an apocalyptic number.

6620531038 is a deficient number, since it is larger than the sum of its proper divisors (4939524002).

6620531038 is a wasteful number, since it uses less digits than its factorization.

6620531038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217072.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 6620531038 is about 81366.6457339861. The cubic root of 6620531038 is about 1877.7204752424.

The spelling of 6620531038 in words is "six billion, six hundred twenty million, five hundred thirty-one thousand, thirty-eight".