140564404065 has 32 divisors (see below), whose sum is σ = 232262848512. Its totient is φ = 72516600000.

The previous prime is 140564404063. The next prime is 140564404081. The reversal of 140564404065 is 560404465041.

It is not a de Polignac number, because 140564404065 - 2¹ = 140564404063 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140564404063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 979570 + ... + 1113860.

It is an arithmetic number, because the mean of its divisors is an integer number (7258214016).

Almost surely, 2^140564404065 is an apocalyptic number.

140564404065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140564404065 is a deficient number, since it is larger than the sum of its proper divisors (91698444447).

140564404065 is a wasteful number, since it uses less digits than its factorization.

140564404065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136581.

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 140564404065 in words is "one hundred forty billion, five hundred sixty-four million, four hundred four thousand, sixty-five".