144420696505 has 8 divisors (see below), whose sum is σ = 173323755072. Its totient is φ = 115523944368.

The previous prime is 144420696503. The next prime is 144420696521. The reversal of 144420696505 is 505696024441.

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 144420696505 - 2¹ = 144420696503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144420696503) 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, 1526077 + ... + 1617946.

It is an arithmetic number, because the mean of its divisors is an integer number (21665469384).

Almost surely, 2^144420696505 is an apocalyptic number.

It is an amenable number.

144420696505 is a deficient number, since it is larger than the sum of its proper divisors (28903058567).

144420696505 is an equidigital number, since it uses as much as digits as its factorization.

144420696505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153215.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 144420696505 in words is "one hundred forty-four billion, four hundred twenty million, six hundred ninety-six thousand, five hundred five".