6656435412 has 48 divisors (see below), whose sum is σ = 17221439424. Its totient is φ = 1984032000.

The previous prime is 6656435393. The next prime is 6656435419. The reversal of 6656435412 is 2145346566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656435419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405289 + ... + 421392.

It is an arithmetic number, because the mean of its divisors is an integer number (358779988).

Almost surely, 2^6656435412 is an apocalyptic number.

It is an amenable number.

6656435412 is an abundant number, since it is smaller than the sum of its proper divisors (10565004012).

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

6656435412 is a wasteful number, since it uses less digits than its factorization.

6656435412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826760 (or 826758 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The square root of 6656435412 is about 81586.9806525526. The cubic root of 6656435412 is about 1881.1087668840.

The spelling of 6656435412 in words is "six billion, six hundred fifty-six million, four hundred thirty-five thousand, four hundred twelve".