144432311455540 has 24 divisors (see below), whose sum is σ = 303637895285760. Its totient is φ = 57710059586208.

The previous prime is 144432311455501. The next prime is 144432311455561. The reversal of 144432311455540 is 45554113234441.

It is a super-2 number, since 2×144432311455540² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 3929043412 + ... + 3929080171.

It is an arithmetic number, because the mean of its divisors is an integer number (12651578970240).

Almost surely, 2^{144432311455540} is an apocalyptic number.

144432311455540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144432311455540 is an abundant number, since it is smaller than the sum of its proper divisors (159205583830220).

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

144432311455540 is a wasteful number, since it uses less digits than its factorization.

144432311455540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7858124511 (or 7858124509 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 46.

Adding to 144432311455540 its reverse (45554113234441), we get a palindrome (189986424689981).

The spelling of 144432311455540 in words is "one hundred forty-four trillion, four hundred thirty-two billion, three hundred eleven million, four hundred fifty-five thousand, five hundred forty".