1666132896 has 24 divisors (see below), whose sum is σ = 4373599104. Its totient is φ = 555377600.

The previous prime is 1666132883. The next prime is 1666132927. The reversal of 1666132896 is 6982316661.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8677680 + ... + 8677871.

It is an arithmetic number, because the mean of its divisors is an integer number (182233296).

Almost surely, 2^1666132896 is an apocalyptic number.

1666132896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1666132896 is an abundant number, since it is smaller than the sum of its proper divisors (2707466208).

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

1666132896 is a wasteful number, since it uses less digits than its factorization.

1666132896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17355564 (or 17355556 counting only the distinct ones).

The product of its digits is 559872, while the sum is 48.

The square root of 1666132896 is about 40818.2911940223. The cubic root of 1666132896 is about 1185.5045169616.

The spelling of 1666132896 in words is "one billion, six hundred sixty-six million, one hundred thirty-two thousand, eight hundred ninety-six".