144906065691 has 16 divisors (see below), whose sum is σ = 194456844288. Its totient is φ = 95980901600.

The previous prime is 144906065687. The next prime is 144906065693. The reversal of 144906065691 is 196560609441.

It is a happy number.

144906065691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 144906065691 - 2² = 144906065687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144906065693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316420 + ... + 624446.

It is an arithmetic number, because the mean of its divisors is an integer number (12153552768).

Almost surely, 2^144906065691 is an apocalyptic number.

144906065691 is a deficient number, since it is larger than the sum of its proper divisors (49550778597).

144906065691 is a wasteful number, since it uses less digits than its factorization.

144906065691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309042.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 144906065691 in words is "one hundred forty-four billion, nine hundred six million, sixty-five thousand, six hundred ninety-one".