1618643280122 has 16 divisors (see below), whose sum is σ = 2705044090752. Its totient is φ = 720092754720.

The previous prime is 1618643279999. The next prime is 1618643280211. The reversal of 1618643280122 is 2210823468161.

It is a super-5 number, since 5×1618643280122⁵ (a number of 62 digits) contains 55555 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, 782708483 + ... + 782710550.

It is an arithmetic number, because the mean of its divisors is an integer number (169065255672).

Almost surely, 2^{1618643280122} is an apocalyptic number.

1618643280122 is a deficient number, since it is larger than the sum of its proper divisors (1086400810630).

1618643280122 is a wasteful number, since it uses less digits than its factorization.

1618643280122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565419093.

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 1618643280122 in words is "one trillion, six hundred eighteen billion, six hundred forty-three million, two hundred eighty thousand, one hundred twenty-two".