240612601663 has 4 divisors (see below), whose sum is σ = 274985830480. Its totient is φ = 206239372848.

The previous prime is 240612601661. The next prime is 240612601673. The reversal of 240612601663 is 366106216042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240612601663 - 2¹ = 240612601661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240612601661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17186614398 + ... + 17186614411.

It is an arithmetic number, because the mean of its divisors is an integer number (68746457620).

Almost surely, 2^240612601663 is an apocalyptic number.

240612601663 is a deficient number, since it is larger than the sum of its proper divisors (34373228817).

240612601663 is an equidigital number, since it uses as much as digits as its factorization.

240612601663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34373228816.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 240612601663 in words is "two hundred forty billion, six hundred twelve million, six hundred one thousand, six hundred sixty-three".