6628916654 has 8 divisors (see below), whose sum is σ = 10185896448. Its totient is φ = 3233617840.

The previous prime is 6628916629. The next prime is 6628916663. The reversal of 6628916654 is 4566198266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6628916596 and 6628916605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40420142 + ... + 40420305.

It is an arithmetic number, because the mean of its divisors is an integer number (1273237056).

Almost surely, 2^6628916654 is an apocalyptic number.

6628916654 is a deficient number, since it is larger than the sum of its proper divisors (3556979794).

6628916654 is a wasteful number, since it uses less digits than its factorization.

6628916654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80840490.

The product of its digits is 3732480, while the sum is 53.

The square root of 6628916654 is about 81418.1592398158. The cubic root of 6628916654 is about 1878.5129192074.

The spelling of 6628916654 in words is "six billion, six hundred twenty-eight million, nine hundred sixteen thousand, six hundred fifty-four".