144321665990 has 32 divisors (see below), whose sum is σ = 260501046624. Its totient is φ = 57568372480.

The previous prime is 144321665951. The next prime is 144321665993. The reversal of 144321665990 is 99566123441.

144321665990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144321665993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8028092 + ... + 8046048.

It is an arithmetic number, because the mean of its divisors is an integer number (8140657707).

Almost surely, 2^144321665990 is an apocalyptic number.

144321665990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144321665990 is a deficient number, since it is larger than the sum of its proper divisors (116179380634).

144321665990 is a wasteful number, since it uses less digits than its factorization.

144321665990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20152.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 144321665990 in words is "one hundred forty-four billion, three hundred twenty-one million, six hundred sixty-five thousand, nine hundred ninety".