6671534064 has 80 divisors (see below), whose sum is σ = 18572290464. Its totient is φ = 2051481600.

The previous prime is 6671534041. The next prime is 6671534083. The reversal of 6671534064 is 4604351766.

It is a super-2 number, since 2×6671534064² = 89018733534224712192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1570984 + ... + 1575224.

Almost surely, 2^6671534064 is an apocalyptic number.

It is an amenable number.

6671534064 is an abundant number, since it is smaller than the sum of its proper divisors (11900756400).

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

6671534064 is a wasteful number, since it uses less digits than its factorization.

6671534064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6786 (or 6780 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 6671534064 is about 81679.4592538418. The cubic root of 6671534064 is about 1882.5299859600.

The spelling of 6671534064 in words is "six billion, six hundred seventy-one million, five hundred thirty-four thousand, sixty-four".