144565660420 has 24 divisors (see below), whose sum is σ = 303595551000. Its totient is φ = 57824804352.

The previous prime is 144565660367. The next prime is 144565660433. The reversal of 144565660420 is 24066565441.

It can be written as a sum of positive squares in 4 ways, for example, as 87204452416 + 57361208004 = 295304^2 + 239502^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100406 + ... + 1224754.

It is an arithmetic number, because the mean of its divisors is an integer number (12649814625).

Almost surely, 2^144565660420 is an apocalyptic number.

144565660420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144565660420 is an abundant number, since it is smaller than the sum of its proper divisors (159029890580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144565660420 is a wasteful number, since it uses less digits than its factorization.

144565660420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182487 (or 182485 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 144565660420 in words is "one hundred forty-four billion, five hundred sixty-five million, six hundred sixty thousand, four hundred twenty".