6618366654 has 32 divisors (see below), whose sum is σ = 13681802880. Its totient is φ = 2133170400.

The previous prime is 6618366641. The next prime is 6618366709. The reversal of 6618366654 is 4566638166.

It is a junction number, because it is equal to n+sod(n) for n = 6618366597 and 6618366606.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 131652 + ... + 174839.

It is an arithmetic number, because the mean of its divisors is an integer number (427556340).

Almost surely, 2^6618366654 is an apocalyptic number.

6618366654 is an abundant number, since it is smaller than the sum of its proper divisors (7063436226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6618366654 is a wasteful number, since it uses less digits than its factorization.

6618366654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306616.

The product of its digits is 3732480, while the sum is 51.

The square root of 6618366654 is about 81353.3444549147. The cubic root of 6618366654 is about 1877.5158314815.

The spelling of 6618366654 in words is "six billion, six hundred eighteen million, three hundred sixty-six thousand, six hundred fifty-four".