6620106243 has 16 divisors (see below), whose sum is σ = 9030375936. Its totient is φ = 4312721280.

The previous prime is 6620106211. The next prime is 6620106263. The reversal of 6620106243 is 3426010266.

It is not a de Polignac number, because 6620106243 - 2⁵ = 6620106211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6620106243.

It is not an unprimeable number, because it can be changed into a prime (6620106263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113455 + ... + 161592.

It is an arithmetic number, because the mean of its divisors is an integer number (564398496).

Almost surely, 2^6620106243 is an apocalyptic number.

6620106243 is a deficient number, since it is larger than the sum of its proper divisors (2410269693).

6620106243 is a wasteful number, since it uses less digits than its factorization.

6620106243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275234.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 6620106243 is about 81364.0353165943. The cubic root of 6620106243 is about 1877.6803141473.

The spelling of 6620106243 in words is "six billion, six hundred twenty million, one hundred six thousand, two hundred forty-three".