206021450504 has 8 divisors (see below), whose sum is σ = 386290219710. Its totient is φ = 103010725248.

The previous prime is 206021450491. The next prime is 206021450513. The reversal of 206021450504 is 405054120602.

It can be written as a sum of positive squares in only one way, i.e., 173297364100 + 32724086404 = 416290^2 + 180898^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12876340649 + ... + 12876340664.

Almost surely, 2^206021450504 is an apocalyptic number.

It is an amenable number.

206021450504 is a deficient number, since it is larger than the sum of its proper divisors (180268769206).

206021450504 is a wasteful number, since it uses less digits than its factorization.

206021450504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25752681319 (or 25752681315 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 206021450504 in words is "two hundred six billion, twenty-one million, four hundred fifty thousand, five hundred four".