20305537134 has 8 divisors (see below), whose sum is σ = 40611074280. Its totient is φ = 6768512376.

The previous prime is 20305537127. The next prime is 20305537159. The reversal of 20305537134 is 43173550302.

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

20305537134 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20305537095 and 20305537104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1692128089 + ... + 1692128100.

It is an arithmetic number, because the mean of its divisors is an integer number (5076384285).

Almost surely, 2^20305537134 is an apocalyptic number.

20305537134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20305537134 is a wasteful number, since it uses less digits than its factorization.

20305537134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384256194.

The product of its (nonzero) digits is 37800, while the sum is 33.

The spelling of 20305537134 in words is "twenty billion, three hundred five million, five hundred thirty-seven thousand, one hundred thirty-four".