240661645340 has 12 divisors (see below), whose sum is σ = 505389455256. Its totient is φ = 96264658128.

The previous prime is 240661645319. The next prime is 240661645351. The reversal of 240661645340 is 43546166042.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6016541114 + ... + 6016541153.

It is an arithmetic number, because the mean of its divisors is an integer number (42115787938).

Almost surely, 2^240661645340 is an apocalyptic number.

240661645340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240661645340 is an abundant number, since it is smaller than the sum of its proper divisors (264727809916).

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

240661645340 is a wasteful number, since it uses less digits than its factorization.

240661645340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12033082276 (or 12033082274 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 240661645340 in words is "two hundred forty billion, six hundred sixty-one million, six hundred forty-five thousand, three hundred forty".