20310655166 has 4 divisors (see below), whose sum is σ = 30465982752. Its totient is φ = 10155327582.

The previous prime is 20310655121. The next prime is 20310655171. The reversal of 20310655166 is 66155601302.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5077663790 + ... + 5077663793.

It is an arithmetic number, because the mean of its divisors is an integer number (7616495688).

Almost surely, 2^20310655166 is an apocalyptic number.

20310655166 is a deficient number, since it is larger than the sum of its proper divisors (10155327586).

20310655166 is a wasteful number, since it uses less digits than its factorization.

20310655166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10155327585.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 20310655166 in words is "twenty billion, three hundred ten million, six hundred fifty-five thousand, one hundred sixty-six".