6445550574 has 12 divisors (see below), whose sum is σ = 13965359616. Its totient is φ = 2148516852.

The previous prime is 6445550497. The next prime is 6445550581. The reversal of 6445550574 is 4750555446.

6445550574 is a `hidden beast` number, since 6 + 4 + 45 + 550 + 57 + 4 = 666.

It is a Curzon number.

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 5 ways as a sum of consecutive naturals, for example, 179043054 + ... + 179043089.

It is an arithmetic number, because the mean of its divisors is an integer number (1163779968).

Almost surely, 2^6445550574 is an apocalyptic number.

6445550574 is an abundant number, since it is smaller than the sum of its proper divisors (7519809042).

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

6445550574 is a wasteful number, since it uses less digits than its factorization.

6445550574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358086151 (or 358086148 counting only the distinct ones).

The product of its (nonzero) digits is 1680000, while the sum is 45.

The square root of 6445550574 is about 80284.1863258263. The cubic root of 6445550574 is about 1861.0298545841.

The spelling of 6445550574 in words is "six billion, four hundred forty-five million, five hundred fifty thousand, five hundred seventy-four".