20707185035 has 16 divisors (see below), whose sum is σ = 25533052416. Its totient is φ = 16113787488.

The previous prime is 20707185011. The next prime is 20707185043. The reversal of 20707185035 is 53058170702.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20707185035 - 2¹⁸ = 20706922891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20707185035.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231989 + ... + 308598.

It is an arithmetic number, because the mean of its divisors is an integer number (1595815776).

Almost surely, 2^20707185035 is an apocalyptic number.

20707185035 is a deficient number, since it is larger than the sum of its proper divisors (4825867381).

20707185035 is a wasteful number, since it uses less digits than its factorization.

20707185035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540802.

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 20707185035 in words is "twenty billion, seven hundred seven million, one hundred eighty-five thousand, thirty-five".