6661453732 has 24 divisors (see below), whose sum is σ = 12443941440. Its totient is φ = 3110980320.

The previous prime is 6661453717. The next prime is 6661453769. The reversal of 6661453732 is 2373541666.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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 in 7 ways as a sum of consecutive naturals, for example, 611863 + ... + 622654.

It is an arithmetic number, because the mean of its divisors is an integer number (518497560).

Almost surely, 2^6661453732 is an apocalyptic number.

It is an amenable number.

6661453732 is a deficient number, since it is larger than the sum of its proper divisors (5782487708).

6661453732 is a wasteful number, since it uses less digits than its factorization.

6661453732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234611 (or 1234609 counting only the distinct ones).

The product of its digits is 544320, while the sum is 43.

The square root of 6661453732 is about 81617.7292749559. The cubic root of 6661453732 is about 1881.5813739109.

The spelling of 6661453732 in words is "six billion, six hundred sixty-one million, four hundred fifty-three thousand, seven hundred thirty-two".