660633160698 has 72 divisors (see below), whose sum is σ = 1676240478900. Its totient is φ = 187485500160.

The previous prime is 660633160687. The next prime is 660633160727. The reversal of 660633160698 is 896061336066.

It can be written as a sum of positive squares in 2 ways, for example, as 490578370569 + 170054790129 = 700413^2 + 412377^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2382063 + ... + 2644898.

Almost surely, 2^660633160698 is an apocalyptic number.

660633160698 is an abundant number, since it is smaller than the sum of its proper divisors (1015607318202).

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

660633160698 is a wasteful number, since it uses less digits than its factorization.

660633160698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027132 (or 5027122 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The spelling of 660633160698 in words is "six hundred sixty billion, six hundred thirty-three million, one hundred sixty thousand, six hundred ninety-eight".