20106086916 has 24 divisors (see below), whose sum is σ = 48953951424. Its totient is φ = 6410636320.

The previous prime is 20106086911. The next prime is 20106086927. The reversal of 20106086916 is 61968060102.

It is not an unprimeable number, because it can be changed into a prime (20106086911) 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, 36423795 + ... + 36424346.

It is an arithmetic number, because the mean of its divisors is an integer number (2039747976).

Almost surely, 2^20106086916 is an apocalyptic number.

It is an amenable number.

20106086916 is an abundant number, since it is smaller than the sum of its proper divisors (28847864508).

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

20106086916 is a wasteful number, since it uses less digits than its factorization.

20106086916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72848171 (or 72848169 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 20106086916 in words is "twenty billion, one hundred six million, eighty-six thousand, nine hundred sixteen".