618208550122 has 16 divisors (see below), whose sum is σ = 967647741120. Its totient is φ = 295659774432.

The previous prime is 618208550117. The next prime is 618208550131. The reversal of 618208550122 is 221055802816.

It is a super-2 number, since 2×618208550122² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4381654 + ... + 4520542.

It is an arithmetic number, because the mean of its divisors is an integer number (60477983820).

Almost surely, 2^618208550122 is an apocalyptic number.

618208550122 is a deficient number, since it is larger than the sum of its proper divisors (349439190998).

618208550122 is a wasteful number, since it uses less digits than its factorization.

618208550122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235677.

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 618208550122 in words is "six hundred eighteen billion, two hundred eight million, five hundred fifty thousand, one hundred twenty-two".