20900466134 has 4 divisors (see below), whose sum is σ = 31350699204. Its totient is φ = 10450233066.

The previous prime is 20900466121. The next prime is 20900466149. The reversal of 20900466134 is 43166400902.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20900466094 and 20900466103.

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, 5225116532 + ... + 5225116535.

It is an arithmetic number, because the mean of its divisors is an integer number (7837674801).

Almost surely, 2^20900466134 is an apocalyptic number.

20900466134 is a deficient number, since it is larger than the sum of its proper divisors (10450233070).

20900466134 is a wasteful number, since it uses less digits than its factorization.

20900466134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10450233069.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 20900466134 in words is "twenty billion, nine hundred million, four hundred sixty-six thousand, one hundred thirty-four".