206520161002 has 32 divisors (see below), whose sum is σ = 330954180480. Its totient is φ = 96366735360.

The previous prime is 206520160933. The next prime is 206520161011. The reversal of 206520161002 is 200161025602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3252018 + ... + 3314914.

It is an arithmetic number, because the mean of its divisors is an integer number (10342318140).

Almost surely, 2^206520161002 is an apocalyptic number.

206520161002 is a deficient number, since it is larger than the sum of its proper divisors (124434019478).

206520161002 is a wasteful number, since it uses less digits than its factorization.

206520161002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64206.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 206520161002 its reverse (200161025602), we get a palindrome (406681186604).

The spelling of 206520161002 in words is "two hundred six billion, five hundred twenty million, one hundred sixty-one thousand, two".