20455771060142 has 32 divisors (see below), whose sum is σ = 33618990039264. Its totient is φ = 9257607011200.

The previous prime is 20455771060133. The next prime is 20455771060199. The reversal of 20455771060142 is 24106017755402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20455771060093 and 20455771060102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5343728 + ... + 8334684.

It is an arithmetic number, because the mean of its divisors is an integer number (1050593438727).

Almost surely, 2^{20455771060142} is an apocalyptic number.

20455771060142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20455771060142 is a deficient number, since it is larger than the sum of its proper divisors (13163218979122).

20455771060142 is a wasteful number, since it uses less digits than its factorization.

20455771060142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992324.

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 20455771060142 in words is "twenty trillion, four hundred fifty-five billion, seven hundred seventy-one million, sixty thousand, one hundred forty-two".