6620251334 has 4 divisors (see below), whose sum is σ = 9930377004. Its totient is φ = 3310125666.

The previous prime is 6620251327. The next prime is 6620251361. The reversal of 6620251334 is 4331520266.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6620251334.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1655062832 + ... + 1655062835.

It is an arithmetic number, because the mean of its divisors is an integer number (2482594251).

Almost surely, 2^6620251334 is an apocalyptic number.

6620251334 is a deficient number, since it is larger than the sum of its proper divisors (3310125670).

6620251334 is a wasteful number, since it uses less digits than its factorization.

6620251334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310125669.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 6620251334 is about 81364.9269280075. The cubic root of 6620251334 is about 1877.6940315769.

The spelling of 6620251334 in words is "six billion, six hundred twenty million, two hundred fifty-one thousand, three hundred thirty-four".