494555018660 has 12 divisors (see below), whose sum is σ = 1038565539228. Its totient is φ = 197822007456.

The previous prime is 494555018641. The next prime is 494555018681. The reversal of 494555018660 is 66810555494.

It can be written as a sum of positive squares in 2 ways, for example, as 173662225984 + 320892792676 = 416728^2 + 566474^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12363875447 + ... + 12363875486.

It is an arithmetic number, because the mean of its divisors is an integer number (86547128269).

Almost surely, 2^494555018660 is an apocalyptic number.

It is an amenable number.

494555018660 is an abundant number, since it is smaller than the sum of its proper divisors (544010520568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

494555018660 is a wasteful number, since it uses less digits than its factorization.

494555018660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24727750942 (or 24727750940 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 53.

The spelling of 494555018660 in words is "four hundred ninety-four billion, five hundred fifty-five million, eighteen thousand, six hundred sixty".