20540730174 has 16 divisors (see below), whose sum is σ = 41101751808. Its totient is φ = 6843528152.

The previous prime is 20540730173. The next prime is 20540730209. The reversal of 20540730174 is 47103704502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20540730173) 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 7 ways as a sum of consecutive naturals, for example, 832302 + ... + 856625.

It is an arithmetic number, because the mean of its divisors is an integer number (2568859488).

Almost surely, 2^20540730174 is an apocalyptic number.

20540730174 is an abundant number, since it is smaller than the sum of its proper divisors (20561021634).

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

20540730174 is a wasteful number, since it uses less digits than its factorization.

20540730174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690959.

The product of its (nonzero) digits is 23520, while the sum is 33.

The spelling of 20540730174 in words is "twenty billion, five hundred forty million, seven hundred thirty thousand, one hundred seventy-four".