1244432192666 has 8 divisors (see below), whose sum is σ = 2010236618964. Its totient is φ = 574353319680.

The previous prime is 1244432192621. The next prime is 1244432192671. The reversal of 1244432192666 is 6662912344421.

It can be written as a sum of positive squares in 2 ways, for example, as 1244387101441 + 45091225 = 1115521^2 + 6715^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1244432192666² (a number of 25 digits) contains 22 as substring.

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, 23931388295 + ... + 23931388346.

Almost surely, 2^{1244432192666} is an apocalyptic number.

1244432192666 is a deficient number, since it is larger than the sum of its proper divisors (765804426298).

1244432192666 is a wasteful number, since it uses less digits than its factorization.

1244432192666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47862776656.

The product of its digits is 2985984, while the sum is 50.

The spelling of 1244432192666 in words is "one trillion, two hundred forty-four billion, four hundred thirty-two million, one hundred ninety-two thousand, six hundred sixty-six".