206631402144054 has 64 divisors (see below), whose sum is σ = 419362247505600. Its totient is φ = 67865985994752.

The previous prime is 206631402144017. The next prime is 206631402144059. The reversal of 206631402144054 is 450441204136602.

It is a junction number, because it is equal to n+sod(n) for n = 206631402143997 and 206631402144015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206631402144059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2705659182 + ... + 2705735550.

It is an arithmetic number, because the mean of its divisors is an integer number (6552535117275).

Almost surely, 2^{206631402144054} is an apocalyptic number.

206631402144054 is an abundant number, since it is smaller than the sum of its proper divisors (212730845361546).

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

206631402144054 is a wasteful number, since it uses less digits than its factorization.

206631402144054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94049.

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 206631402144054 in words is "two hundred six trillion, six hundred thirty-one billion, four hundred two million, one hundred forty-four thousand, fifty-four".