144544636550 has 24 divisors (see below), whose sum is σ = 283003185000. Its totient is φ = 54774809280.

The previous prime is 144544636549. The next prime is 144544636567. The reversal of 144544636550 is 55636445441.

It is a junction number, because it is equal to n+sod(n) for n = 144544636495 and 144544636504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76075175 + ... + 76077074.

It is an arithmetic number, because the mean of its divisors is an integer number (11791799375).

Almost surely, 2^144544636550 is an apocalyptic number.

144544636550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144544636550 is a deficient number, since it is larger than the sum of its proper divisors (138458548450).

144544636550 is a wasteful number, since it uses less digits than its factorization.

144544636550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152152280 (or 152152275 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 47.

The spelling of 144544636550 in words is "one hundred forty-four billion, five hundred forty-four million, six hundred thirty-six thousand, five hundred fifty".