20306115886 has 16 divisors (see below), whose sum is σ = 35467287264. Its totient is φ = 8538420384.

The previous prime is 20306115877. The next prime is 20306115889. The reversal of 20306115886 is 68851160302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20306115889) 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, 13682625 + ... + 13684108.

It is an arithmetic number, because the mean of its divisors is an integer number (2216705454).

Almost surely, 2^20306115886 is an apocalyptic number.

20306115886 is a deficient number, since it is larger than the sum of its proper divisors (15161171378).

20306115886 is a wasteful number, since it uses less digits than its factorization.

20306115886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27366795.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 20306115886 in words is "twenty billion, three hundred six million, one hundred fifteen thousand, eight hundred eighty-six".