144638620101 has 6 divisors (see below), whose sum is σ = 208922451270. Its totient is φ = 96425746728.

The previous prime is 144638620079. The next prime is 144638620121. The reversal of 144638620101 is 101026836441.

144638620101 is a `hidden beast` number, since 1 + 4 + 4 + 638 + 6 + 2 + 0 + 10 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 144608315076 + 30305025 = 380274^2 + 5505^2 .

It is not a de Polignac number, because 144638620101 - 2¹⁹ = 144638095813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144638620121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8035478886 + ... + 8035478903.

It is an arithmetic number, because the mean of its divisors is an integer number (34820408545).

Almost surely, 2^144638620101 is an apocalyptic number.

It is an amenable number.

144638620101 is a deficient number, since it is larger than the sum of its proper divisors (64283831169).

144638620101 is a wasteful number, since it uses less digits than its factorization.

144638620101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16070957795 (or 16070957792 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 144638620101 in words is "one hundred forty-four billion, six hundred thirty-eight million, six hundred twenty thousand, one hundred one".