144640564070 has 32 divisors (see below), whose sum is σ = 269534867328. Its totient is φ = 55849540608.

The previous prime is 144640564067. The next prime is 144640564141. The reversal of 144640564070 is 70465046441.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2073539 + ... + 2142158.

It is an arithmetic number, because the mean of its divisors is an integer number (8422964604).

Almost surely, 2^144640564070 is an apocalyptic number.

144640564070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144640564070 is a deficient number, since it is larger than the sum of its proper divisors (124894303258).

144640564070 is a wasteful number, since it uses less digits than its factorization.

144640564070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215824.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 144640564070 in words is "one hundred forty-four billion, six hundred forty million, five hundred sixty-four thousand, seventy".