144640563756 has 36 divisors (see below), whose sum is σ = 365452790472. Its totient is φ = 44504788224.

The previous prime is 144640563721. The next prime is 144640563787. The reversal of 144640563756 is 657365046441.

It is a junction number, because it is equal to n+sod(n) for n = 144640563699 and 144640563708.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35658861 + ... + 35662916.

It is an arithmetic number, because the mean of its divisors is an integer number (10151466402).

Almost surely, 2^144640563756 is an apocalyptic number.

It is an amenable number.

144640563756 is an abundant number, since it is smaller than the sum of its proper divisors (220812226716).

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

144640563756 is a wasteful number, since it uses less digits than its factorization.

144640563756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71321810 (or 71321795 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 51.

The spelling of 144640563756 in words is "one hundred forty-four billion, six hundred forty million, five hundred sixty-three thousand, seven hundred fifty-six".