144556645321 has 8 divisors (see below), whose sum is σ = 162785196288. Its totient is φ = 127175934000.

The previous prime is 144556645313. The next prime is 144556645379. The reversal of 144556645321 is 123546655441.

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

It is a cyclic number.

It is not a de Polignac number, because 144556645321 - 2³ = 144556645313 is a prime.

It is a super-2 number, since 2×144556645321² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144556645391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211959550 + ... + 211960231.

It is an arithmetic number, because the mean of its divisors is an integer number (20348149536).

Almost surely, 2^144556645321 is an apocalyptic number.

144556645321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144556645321 is a deficient number, since it is larger than the sum of its proper divisors (18228550967).

144556645321 is a wasteful number, since it uses less digits than its factorization.

144556645321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423919823.

The product of its digits is 1728000, while the sum is 46.

The spelling of 144556645321 in words is "one hundred forty-four billion, five hundred fifty-six million, six hundred forty-five thousand, three hundred twenty-one".