6620251292 has 12 divisors (see below), whose sum is σ = 11606623560. Its totient is φ = 3304073136.

The previous prime is 6620251277. The next prime is 6620251303. The reversal of 6620251292 is 2921520266.

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 in 3 ways as a sum of consecutive naturals, for example, 1510667 + ... + 1515042.

It is an arithmetic number, because the mean of its divisors is an integer number (967218630).

Almost surely, 2^6620251292 is an apocalyptic number.

It is an amenable number.

6620251292 is a deficient number, since it is larger than the sum of its proper divisors (4986372268).

6620251292 is a wasteful number, since it uses less digits than its factorization.

6620251292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026260 (or 3026258 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 6620251292 is about 81364.9266699110. The cubic root of 6620251292 is about 1877.6940276061.

The spelling of 6620251292 in words is "six billion, six hundred twenty million, two hundred fifty-one thousand, two hundred ninety-two".