1666130200352 has 18 divisors (see below), whose sum is σ = 3280208207409. Its totient is φ = 833061449280.

The previous prime is 1666130200351. The next prime is 1666130200369. The reversal of 1666130200352 is 2530020316661.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 1478568449296 + 187561751056 = 1215964^2 + 433084^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=912724.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1666130200351) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7187702 + ... + 7415882.

Almost surely, 2^{1666130200352} is an apocalyptic number.

It is an amenable number.

1666130200352 is a deficient number, since it is larger than the sum of its proper divisors (1614078007057).

1666130200352 is an frugal number, since it uses more digits than its factorization.

1666130200352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456372 (or 228183 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 1666130200352 in words is "one trillion, six hundred sixty-six billion, one hundred thirty million, two hundred thousand, three hundred fifty-two".