6666736470 has 32 divisors (see below), whose sum is σ = 16116967008. Its totient is φ = 1764818688.

The previous prime is 6666736457. The next prime is 6666736471. The reversal of 6666736470 is 746376666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666736471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806929 + ... + 815148.

It is an arithmetic number, because the mean of its divisors is an integer number (503655219).

Almost surely, 2^6666736470 is an apocalyptic number.

6666736470 is an abundant number, since it is smaller than the sum of its proper divisors (9450230538).

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

6666736470 is a wasteful number, since it uses less digits than its factorization.

6666736470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622224.

The product of its (nonzero) digits is 4572288, while the sum is 51.

The square root of 6666736470 is about 81650.0855480262. The cubic root of 6666736470 is about 1882.0786264843.

The spelling of 6666736470 in words is "six billion, six hundred sixty-six million, seven hundred thirty-six thousand, four hundred seventy".