20065195706 has 4 divisors (see below), whose sum is σ = 30097793562. Its totient is φ = 10032597852.

The previous prime is 20065195669. The next prime is 20065195757. The reversal of 20065195706 is 60759156002.

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

It can be written as a sum of positive squares in only one way, i.e., 14051968681 + 6013227025 = 118541^2 + 77545^2 .

It is a super-2 number, since 2×20065195706² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5016298925 + ... + 5016298928.

Almost surely, 2^20065195706 is an apocalyptic number.

20065195706 is a deficient number, since it is larger than the sum of its proper divisors (10032597856).

20065195706 is a wasteful number, since it uses less digits than its factorization.

20065195706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10032597855.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 20065195706 in words is "twenty billion, sixty-five million, one hundred ninety-five thousand, seven hundred six".