20455315310154 has 32 divisors (see below), whose sum is σ = 41149226880000. Its totient is φ = 6778690996464.

The previous prime is 20455315310123. The next prime is 20455315310167. The reversal of 20455315310154 is 45101351355402.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 2079087 + ... + 6725565.

It is an arithmetic number, because the mean of its divisors is an integer number (1285913340000).

Almost surely, 2^{20455315310154} is an apocalyptic number.

20455315310154 is an abundant number, since it is smaller than the sum of its proper divisors (20693911569846).

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

20455315310154 is a wasteful number, since it uses less digits than its factorization.

20455315310154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4650762.

The product of its (nonzero) digits is 180000, while the sum is 39.

Adding to 20455315310154 its reverse (45101351355402), we get a palindrome (65556666665556).

The spelling of 20455315310154 in words is "twenty trillion, four hundred fifty-five billion, three hundred fifteen million, three hundred ten thousand, one hundred fifty-four".