512505220400202 has 16 divisors (see below), whose sum is σ = 1069576112139840. Its totient is φ = 163407461576832.

The previous prime is 512505220400183. The next prime is 512505220400203. The reversal of 512505220400202 is 202004022505215.

It is a self number, because there is not a number n which added to its sum of digits gives 512505220400202.

It is not an unprimeable number, because it can be changed into a prime (512505220400203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856902972327 + ... + 1856902972602.

It is an arithmetic number, because the mean of its divisors is an integer number (66848507008740).

Almost surely, 2^{512505220400202} is an apocalyptic number.

512505220400202 is an abundant number, since it is smaller than the sum of its proper divisors (557070891739638).

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

512505220400202 is a wasteful number, since it uses less digits than its factorization.

512505220400202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713805944957.

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 512505220400202 its reverse (202004022505215), we get a palindrome (714509242905417).

The spelling of 512505220400202 in words is "five hundred twelve trillion, five hundred five billion, two hundred twenty million, four hundred thousand, two hundred two".