206021450454 has 16 divisors (see below), whose sum is σ = 412211317248. Its totient is φ = 68645747432.

The previous prime is 206021450449. The next prime is 206021450461. The reversal of 206021450454 is 454054120602.

It is a super-2 number, since 2×206021450454² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7001442 + ... + 7030805.

It is an arithmetic number, because the mean of its divisors is an integer number (25763207328).

Almost surely, 2^206021450454 is an apocalyptic number.

206021450454 is an abundant number, since it is smaller than the sum of its proper divisors (206189866794).

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

206021450454 is a wasteful number, since it uses less digits than its factorization.

206021450454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14034699.

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 206021450454 in words is "two hundred six billion, twenty-one million, four hundred fifty thousand, four hundred fifty-four".