6620446045 has 8 divisors (see below), whose sum is σ = 7955290080. Its totient is φ = 5289186960.

The previous prime is 6620446039. The next prime is 6620446067. The reversal of 6620446045 is 5406440266.

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

It is a de Polignac number, because none of the positive numbers 2^k-6620446045 is a prime.

It is a super-2 number, since 2×6620446045² = 87660611669512284050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6620445995 and 6620446013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892171 + ... + 899560.

It is an arithmetic number, because the mean of its divisors is an integer number (994411260).

Almost surely, 2^6620446045 is an apocalyptic number.

It is an amenable number.

6620446045 is a deficient number, since it is larger than the sum of its proper divisors (1334844035).

6620446045 is a wasteful number, since it uses less digits than its factorization.

6620446045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792475.

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 6620446045 is about 81366.1234482754. The cubic root of 6620446045 is about 1877.7124399464.

The spelling of 6620446045 in words is "six billion, six hundred twenty million, four hundred forty-six thousand, forty-five".