20255402101045 has 16 divisors (see below), whose sum is σ = 24898180995072. Its totient is φ = 15810656984640.

The previous prime is 20255402101031. The next prime is 20255402101069. The reversal of 20255402101045 is 54010120455202.

It is not a de Polignac number, because 20255402101045 - 2⁵ = 20255402101013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20255402100998 and 20255402101016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49856757 + ... + 50261386.

It is an arithmetic number, because the mean of its divisors is an integer number (1556136312192).

Almost surely, 2^{20255402101045} is an apocalyptic number.

It is an amenable number.

20255402101045 is a deficient number, since it is larger than the sum of its proper divisors (4642778894027).

20255402101045 is a wasteful number, since it uses less digits than its factorization.

20255402101045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100119132.

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 20255402101045 its reverse (54010120455202), we get a palindrome (74265522556247).

The spelling of 20255402101045 in words is "twenty trillion, two hundred fifty-five billion, four hundred two million, one hundred one thousand, forty-five".