240220564617487 has 2 divisors, whose sum is σ = 240220564617488. Its totient is φ = 240220564617486.

The previous prime is 240220564617463. The next prime is 240220564617533. The reversal of 240220564617487 is 784716465022042.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240220564617487 - 2¹⁵ = 240220564584719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240220564611487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120110282308743 + 120110282308744.

It is an arithmetic number, because the mean of its divisors is an integer number (120110282308744).

Almost surely, 2^{240220564617487} is an apocalyptic number.

240220564617487 is a deficient number, since it is larger than the sum of its proper divisors (1).

240220564617487 is an equidigital number, since it uses as much as digits as its factorization.

240220564617487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36126720, while the sum is 58.

The spelling of 240220564617487 in words is "two hundred forty trillion, two hundred twenty billion, five hundred sixty-four million, six hundred seventeen thousand, four hundred eighty-seven".