20775681134 has 8 divisors (see below), whose sum is σ = 33560715720. Its totient is φ = 9588775896.

The previous prime is 20775681077. The next prime is 20775681149. The reversal of 20775681134 is 43118657702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399532304 + ... + 399532355.

It is an arithmetic number, because the mean of its divisors is an integer number (4195089465).

Almost surely, 2^20775681134 is an apocalyptic number.

20775681134 is a deficient number, since it is larger than the sum of its proper divisors (12785034586).

20775681134 is a wasteful number, since it uses less digits than its factorization.

20775681134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799064674.

The product of its (nonzero) digits is 282240, while the sum is 44.

It can be divided in two parts, 2077568 and 1134, that added together give a palindrome (2078702).

The spelling of 20775681134 in words is "twenty billion, seven hundred seventy-five million, six hundred eighty-one thousand, one hundred thirty-four".