1866349096001 has 4 divisors (see below), whose sum is σ = 2009914411092. Its totient is φ = 1722783780912.

The previous prime is 1866349095977. The next prime is 1866349096009. The reversal of 1866349096001 is 1006909436681.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 509904533776 + 1356444562225 = 714076^2 + 1164665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1866349096001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1866349096009) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 71782657526 + ... + 71782657551.

It is an arithmetic number, because the mean of its divisors is an integer number (502478602773).

Almost surely, 2^{1866349096001} is an apocalyptic number.

It is an amenable number.

1866349096001 is a deficient number, since it is larger than the sum of its proper divisors (143565315091).

1866349096001 is a wasteful number, since it uses less digits than its factorization.

1866349096001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143565315090.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 1866349096001 in words is "one trillion, eight hundred sixty-six billion, three hundred forty-nine million, ninety-six thousand, one".