20256036105 has 16 divisors (see below), whose sum is σ = 32427696384. Its totient is φ = 10797206400.

The previous prime is 20256036091. The next prime is 20256036107. The reversal of 20256036105 is 50163065202.

It is not a de Polignac number, because 20256036105 - 2¹⁰ = 20256035081 is a prime.

It is a super-3 number, since 3×20256036105³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20256036107) by changing a digit.

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, 347889 + ... + 401918.

It is an arithmetic number, because the mean of its divisors is an integer number (2026731024).

Almost surely, 2^20256036105 is an apocalyptic number.

It is an amenable number.

20256036105 is a deficient number, since it is larger than the sum of its proper divisors (12171660279).

20256036105 is a wasteful number, since it uses less digits than its factorization.

20256036105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751616.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 20256036105 in words is "twenty billion, two hundred fifty-six million, thirty-six thousand, one hundred five".