6620755383 has 24 divisors (see below), whose sum is σ = 11046396816. Its totient is φ = 3776544000.

The previous prime is 6620755381. The next prime is 6620755397. The reversal of 6620755383 is 3835570266.

6620755383 is a `hidden beast` number, since 66 + 207 + 5 + 5 + 383 = 666.

It is not a de Polignac number, because 6620755383 - 2¹ = 6620755381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620755381) 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 23 ways as a sum of consecutive naturals, for example, 1965268 + ... + 1968633.

It is an arithmetic number, because the mean of its divisors is an integer number (460266534).

Almost surely, 2^6620755383 is an apocalyptic number.

6620755383 is a deficient number, since it is larger than the sum of its proper divisors (4425641433).

6620755383 is a wasteful number, since it uses less digits than its factorization.

6620755383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3933935 (or 3933932 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The square root of 6620755383 is about 81368.0243277419. The cubic root of 6620755383 is about 1877.7416846408.

The spelling of 6620755383 in words is "six billion, six hundred twenty million, seven hundred fifty-five thousand, three hundred eighty-three".