6664012487 has 8 divisors (see below), whose sum is σ = 7270530192. Its totient is φ = 6057611200.

The previous prime is 6664012471. The next prime is 6664012517. The reversal of 6664012487 is 7842104666.

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

It is a cyclic number.

It is not a de Polignac number, because 6664012487 - 2⁴ = 6664012471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664012447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127037 + ... + 171657.

It is an arithmetic number, because the mean of its divisors is an integer number (908816274).

Almost surely, 2^6664012487 is an apocalyptic number.

6664012487 is a deficient number, since it is larger than the sum of its proper divisors (606517705).

6664012487 is a wasteful number, since it uses less digits than its factorization.

6664012487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58209.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 6664012487 is about 81633.4030100424. The cubic root of 6664012487 is about 1881.8222567389.

The spelling of 6664012487 in words is "six billion, six hundred sixty-four million, twelve thousand, four hundred eighty-seven".