202001211664 has 20 divisors (see below), whose sum is σ = 447288397504. Its totient is φ = 86571947808.

The previous prime is 202001211647. The next prime is 202001211679. The reversal of 202001211664 is 466112100202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901791012 + ... + 901791235.

Almost surely, 2^202001211664 is an apocalyptic number.

It is an amenable number.

202001211664 is an abundant number, since it is smaller than the sum of its proper divisors (245287185840).

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

202001211664 is a wasteful number, since it uses less digits than its factorization.

202001211664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803582262 (or 1803582256 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 202001211664 its reverse (466112100202), we get a palindrome (668113311866).

The spelling of 202001211664 in words is "two hundred two billion, one million, two hundred eleven thousand, six hundred sixty-four".