144655668 has 36 divisors (see below), whose sum is σ = 366545088. Its totient is φ = 48101520.

The previous prime is 144655661. The next prime is 144655673. The reversal of 144655668 is 866556441.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144655661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10855 + ... + 20177.

It is an arithmetic number, because the mean of its divisors is an integer number (10181808).

Almost surely, 2^144655668 is an apocalyptic number.

144655668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

144655668 is an abundant number, since it is smaller than the sum of its proper divisors (221889420).

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

144655668 is a wasteful number, since it uses less digits than its factorization.

144655668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9764 (or 9759 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 144655668 is about 12027.2884724696. The cubic root of 144655668 is about 524.9426005273.

The spelling of 144655668 in words is "one hundred forty-four million, six hundred fifty-five thousand, six hundred sixty-eight".