1144553623501 has 4 divisors (see below), whose sum is σ = 1161636513472. Its totient is φ = 1127470733532.

The previous prime is 1144553623481. The next prime is 1144553623571. The reversal of 1144553623501 is 1053263554411.

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 a de Polignac number, because none of the positive numbers 2^k-1144553623501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144553623571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8541444885 + ... + 8541445018.

It is an arithmetic number, because the mean of its divisors is an integer number (290409128368).

Almost surely, 2^{1144553623501} is an apocalyptic number.

It is an amenable number.

1144553623501 is a deficient number, since it is larger than the sum of its proper divisors (17082889971).

1144553623501 is an equidigital number, since it uses as much as digits as its factorization.

1144553623501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17082889970.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 1144553623501 in words is "one trillion, one hundred forty-four billion, five hundred fifty-three million, six hundred twenty-three thousand, five hundred one".