20375002045618 has 24 divisors (see below), whose sum is σ = 33601624871724. Its totient is φ = 9259123278240.

The previous prime is 20375002045613. The next prime is 20375002045669. The reversal of 20375002045618 is 81654020057302.

It can be written as a sum of positive squares in 2 ways, for example, as 20094088265449 + 280913780169 = 4482643^2 + 530013^2 .

It is not an unprimeable number, because it can be changed into a prime (20375002045613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9185421 + ... + 11185792.

Almost surely, 2^{20375002045618} is an apocalyptic number.

20375002045618 is a deficient number, since it is larger than the sum of its proper divisors (13226622826106).

20375002045618 is a wasteful number, since it uses less digits than its factorization.

20375002045618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20375370 (or 20375359 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 20375002045618 in words is "twenty trillion, three hundred seventy-five billion, two million, forty-five thousand, six hundred eighteen".