206055216301644 has 72 divisors (see below), whose sum is σ = 527475328773120. Its totient is φ = 67813025061600.

The previous prime is 206055216301589. The next prime is 206055216301663. The reversal of 206055216301644 is 446103612550602.

206055216301644 is a `hidden beast` number, since 2 + 0 + 6 + 0 + 5 + 5 + 2 + 1 + 630 + 1 + 6 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 206055216301644.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73046109 + ... + 75814539.

It is an arithmetic number, because the mean of its divisors is an integer number (7326046232960).

Almost surely, 2^{206055216301644} is an apocalyptic number.

It is an amenable number.

206055216301644 is an abundant number, since it is smaller than the sum of its proper divisors (321420112471476).

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

206055216301644 is a wasteful number, since it uses less digits than its factorization.

206055216301644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794691 (or 2794686 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 206055216301644 in words is "two hundred six trillion, fifty-five billion, two hundred sixteen million, three hundred one thousand, six hundred forty-four".