10993522618 has 16 divisors (see below), whose sum is σ = 18191909736. Its totient is φ = 4950178560.

The previous prime is 10993522613. The next prime is 10993522679. The reversal of 10993522618 is 81622539901.

It can be written as a sum of positive squares in 4 ways, for example, as 8249543929 + 2743978689 = 90827^2 + 52383^2 .

It is not an unprimeable number, because it can be changed into a prime (10993522613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5155371 + ... + 5157502.

Almost surely, 2^10993522618 is an apocalyptic number.

10993522618 is a deficient number, since it is larger than the sum of its proper divisors (7198387118).

10993522618 is a wasteful number, since it uses less digits than its factorization.

10993522618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10312929.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 10993522618 in words is "ten billion, nine hundred ninety-three million, five hundred twenty-two thousand, six hundred eighteen".