20344342454106 has 64 divisors (see below), whose sum is σ = 45227379749760. Its totient is φ = 6048335421440.

The previous prime is 20344342454099. The next prime is 20344342454173. The reversal of 20344342454106 is 60145424344302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77079610 + ... + 77343098.

It is an arithmetic number, because the mean of its divisors is an integer number (706677808590).

Almost surely, 2^{20344342454106} is an apocalyptic number.

20344342454106 is an abundant number, since it is smaller than the sum of its proper divisors (24883037295654).

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

20344342454106 is a wasteful number, since it uses less digits than its factorization.

20344342454106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285631.

The product of its (nonzero) digits is 1105920, while the sum is 42.

Adding to 20344342454106 its reverse (60145424344302), we get a palindrome (80489766798408).

The spelling of 20344342454106 in words is "twenty trillion, three hundred forty-four billion, three hundred forty-two million, four hundred fifty-four thousand, one hundred six".