240045065191 has 18 divisors (see below), whose sum is σ = 245196448560. Its totient is φ = 234964212912.

The previous prime is 240045065179. The next prime is 240045065203. The reversal of 240045065191 is 191560540042.

It is an interprime number because it is at equal distance from previous prime (240045065179) and next prime (240045065203).

It is a de Polignac number, because none of the positive numbers 2^k-240045065191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240045065191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240045065171) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 866588545 + ... + 866588821.

It is an arithmetic number, because the mean of its divisors is an integer number (13622024920).

Almost surely, 2^240045065191 is an apocalyptic number.

240045065191 is a deficient number, since it is larger than the sum of its proper divisors (5151383369).

240045065191 is an frugal number, since it uses more digits than its factorization.

240045065191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 240045065191 in words is "two hundred forty billion, forty-five million, sixty-five thousand, one hundred ninety-one".