6661732342 has 16 divisors (see below), whose sum is σ = 10216969920. Its totient is φ = 3256239168.

The previous prime is 6661732327. The next prime is 6661732381. The reversal of 6661732342 is 2432371666.

It is a junction number, because it is equal to n+sod(n) for n = 6661732295 and 6661732304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42034 + ... + 122842.

It is an arithmetic number, because the mean of its divisors is an integer number (638560620).

Almost surely, 2^6661732342 is an apocalyptic number.

6661732342 is a deficient number, since it is larger than the sum of its proper divisors (3555237578).

6661732342 is a wasteful number, since it uses less digits than its factorization.

6661732342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81735.

The product of its digits is 217728, while the sum is 40.

The square root of 6661732342 is about 81619.4360553906. The cubic root of 6661732342 is about 1881.6076054263.

The spelling of 6661732342 in words is "six billion, six hundred sixty-one million, seven hundred thirty-two thousand, three hundred forty-two".