6620029028 has 12 divisors (see below), whose sum is σ = 11587227372. Its totient is φ = 3309392640.

The previous prime is 6620028977. The next prime is 6620029033. The reversal of 6620029028 is 8209200266.

It can be written as a sum of positive squares in 2 ways, for example, as 2638671424 + 3981357604 = 51368^2 + 63098^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131093 + ... + 174428.

It is an arithmetic number, because the mean of its divisors is an integer number (965602281).

Almost surely, 2^6620029028 is an apocalyptic number.

It is an amenable number.

6620029028 is a deficient number, since it is larger than the sum of its proper divisors (4967198344).

6620029028 is a wasteful number, since it uses less digits than its factorization.

6620029028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310942 (or 310940 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 6620029028 is about 81363.5608119507. The cubic root of 6620029028 is about 1877.6730138793.

The spelling of 6620029028 in words is "six billion, six hundred twenty million, twenty-nine thousand, twenty-eight".