6616697473 has 4 divisors (see below), whose sum is σ = 6628450608. Its totient is φ = 6604944340.

The previous prime is 6616697467. The next prime is 6616697519. The reversal of 6616697473 is 3747966166.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6616697473 - 2¹⁷ = 6616566401 is a prime.

It is a super-3 number, since 3×6616697473³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6616697413) by changing a digit.

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, 5875723 + ... + 5876848.

It is an arithmetic number, because the mean of its divisors is an integer number (1657112652).

Almost surely, 2^6616697473 is an apocalyptic number.

It is an amenable number.

6616697473 is a deficient number, since it is larger than the sum of its proper divisors (11753135).

6616697473 is a wasteful number, since it uses less digits than its factorization.

6616697473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11753134.

The product of its digits is 6858432, while the sum is 55.

The square root of 6616697473 is about 81343.0849734629. The cubic root of 6616697473 is about 1877.3579789772.

The spelling of 6616697473 in words is "six billion, six hundred sixteen million, six hundred ninety-seven thousand, four hundred seventy-three".