240387620350665 has 8 divisors (see below), whose sum is σ = 384620192561088. Its totient is φ = 128206730853680.

The previous prime is 240387620350663. The next prime is 240387620350679. The reversal of 240387620350665 is 566053026783042.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240387620350665 - 2¹ = 240387620350663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240387620350663) 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 7 ways as a sum of consecutive naturals, for example, 8012920678341 + ... + 8012920678370.

It is an arithmetic number, because the mean of its divisors is an integer number (48077524070136).

Almost surely, 2^{240387620350665} is an apocalyptic number.

It is an amenable number.

240387620350665 is a deficient number, since it is larger than the sum of its proper divisors (144232572210423).

240387620350665 is a wasteful number, since it uses less digits than its factorization.

240387620350665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16025841356719.

The product of its (nonzero) digits is 43545600, while the sum is 57.

The spelling of 240387620350665 in words is "two hundred forty trillion, three hundred eighty-seven billion, six hundred twenty million, three hundred fifty thousand, six hundred sixty-five".