6663573471 has 4 divisors (see below), whose sum is σ = 8884764632. Its totient is φ = 4442382312.

The previous prime is 6663573461. The next prime is 6663573479. The reversal of 6663573471 is 1743753666.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6663573471 - 2⁵ = 6663573439 is a prime.

It is a super-3 number, since 3×6663573471³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6663573471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663573479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110595576 + ... + 1110595581.

It is an arithmetic number, because the mean of its divisors is an integer number (2221191158).

Almost surely, 2^6663573471 is an apocalyptic number.

6663573471 is a deficient number, since it is larger than the sum of its proper divisors (2221191161).

6663573471 is a wasteful number, since it uses less digits than its factorization.

6663573471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221191160.

The product of its digits is 1905120, while the sum is 48.

The square root of 6663573471 is about 81630.7140174579. The cubic root of 6663573471 is about 1881.7809318753.

The spelling of 6663573471 in words is "six billion, six hundred sixty-three million, five hundred seventy-three thousand, four hundred seventy-one".