1044153143661 has 4 divisors (see below), whose sum is σ = 1392204191552. Its totient is φ = 696102095772.

The previous prime is 1044153143611. The next prime is 1044153143689. The reversal of 1044153143661 is 1663413514401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1044153143661 - 2⁶ = 1044153143597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044153143611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174025523941 + ... + 174025523946.

It is an arithmetic number, because the mean of its divisors is an integer number (348051047888).

Almost surely, 2^{1044153143661} is an apocalyptic number.

It is an amenable number.

1044153143661 is a deficient number, since it is larger than the sum of its proper divisors (348051047891).

1044153143661 is an equidigital number, since it uses as much as digits as its factorization.

1044153143661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348051047890.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 1044153143661 in words is "one trillion, forty-four billion, one hundred fifty-three million, one hundred forty-three thousand, six hundred sixty-one".