6661494932 has 24 divisors (see below), whose sum is σ = 11772343296. Its totient is φ = 3298071168.

The previous prime is 6661494913. The next prime is 6661494947. The reversal of 6661494932 is 2394941666.

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, 253148 + ... + 278220.

It is an arithmetic number, because the mean of its divisors is an integer number (490514304).

Almost surely, 2^6661494932 is an apocalyptic number.

It is an amenable number.

6661494932 is a deficient number, since it is larger than the sum of its proper divisors (5110848364).

6661494932 is a wasteful number, since it uses less digits than its factorization.

6661494932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25727 (or 25725 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 50.

The square root of 6661494932 is about 81617.9816707078. The cubic root of 6661494932 is about 1881.5852529938.

The spelling of 6661494932 in words is "six billion, six hundred sixty-one million, four hundred ninety-four thousand, nine hundred thirty-two".