20155340141394 has 16 divisors (see below), whose sum is σ = 40971511107840. Its totient is φ = 6608308242960.

The previous prime is 20155340141389. The next prime is 20155340141401. The reversal of 20155340141394 is 49314104355102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27534617314 + ... + 27534618045.

It is an arithmetic number, because the mean of its divisors is an integer number (2560719444240).

Almost surely, 2^{20155340141394} is an apocalyptic number.

20155340141394 is an abundant number, since it is smaller than the sum of its proper divisors (20816170966446).

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

20155340141394 is a wasteful number, since it uses less digits than its factorization.

20155340141394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55069235425.

The product of its (nonzero) digits is 259200, while the sum is 42.

Adding to 20155340141394 its reverse (49314104355102), we get a palindrome (69469444496496).

The spelling of 20155340141394 in words is "twenty trillion, one hundred fifty-five billion, three hundred forty million, one hundred forty-one thousand, three hundred ninety-four".