206415052242 has 32 divisors (see below), whose sum is σ = 496637721600. Its totient is φ = 55871743248.

The previous prime is 206415052241. The next prime is 206415052271. The reversal of 206415052242 is 242250514602.

It is not an unprimeable number, because it can be changed into a prime (206415052241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129331942 + ... + 129333537.

It is an arithmetic number, because the mean of its divisors is an integer number (15519928800).

Almost surely, 2^206415052242 is an apocalyptic number.

206415052242 is an abundant number, since it is smaller than the sum of its proper divisors (290222669358).

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

206415052242 is a wasteful number, since it uses less digits than its factorization.

206415052242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258665510.

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

Adding to 206415052242 its reverse (242250514602), we get a palindrome (448665566844).

The spelling of 206415052242 in words is "two hundred six billion, four hundred fifteen million, fifty-two thousand, two hundred forty-two".