6647142652 has 6 divisors (see below), whose sum is σ = 11632499648. Its totient is φ = 3323571324.

The previous prime is 6647142643. The next prime is 6647142701. The reversal of 6647142652 is 2562417466.

It is a junction number, because it is equal to n+sod(n) for n = 6647142599 and 6647142608.

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 as a sum of consecutive naturals, namely, 830892828 + ... + 830892835.

Almost surely, 2^6647142652 is an apocalyptic number.

It is an amenable number.

6647142652 is a deficient number, since it is larger than the sum of its proper divisors (4985356996).

6647142652 is a wasteful number, since it uses less digits than its factorization.

6647142652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661785667 (or 1661785665 counting only the distinct ones).

The product of its digits is 483840, while the sum is 43.

The square root of 6647142652 is about 81530.0107445105. The cubic root of 6647142652 is about 1880.2329811611.

The spelling of 6647142652 in words is "six billion, six hundred forty-seven million, one hundred forty-two thousand, six hundred fifty-two".