618816242241 has 32 divisors (see below), whose sum is σ = 922177267200. Its totient is φ = 410110013520.

The previous prime is 618816242197. The next prime is 618816242251. The reversal of 618816242241 is 142242618816.

618816242241 is a `hidden beast` number, since 6 + 18 + 8 + 1 + 624 + 2 + 2 + 4 + 1 = 666.

It is not a de Polignac number, because 618816242241 - 2⁷ = 618816242113 is a prime.

It is a super-2 number, since 2×618816242241² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (618816242251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16737546 + ... + 16774476.

It is an arithmetic number, because the mean of its divisors is an integer number (28818039600).

Almost surely, 2^618816242241 is an apocalyptic number.

It is an amenable number.

618816242241 is a deficient number, since it is larger than the sum of its proper divisors (303361024959).

618816242241 is a wasteful number, since it uses less digits than its factorization.

618816242241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40586 (or 40580 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The spelling of 618816242241 in words is "six hundred eighteen billion, eight hundred sixteen million, two hundred forty-two thousand, two hundred forty-one".