201664662000 has 80 divisors (see below), whose sum is σ = 650166889632. Its totient is φ = 53777241600.

The previous prime is 201664661999. The next prime is 201664662037. The reversal of 201664662000 is 266466102.

201664662000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16799389 + ... + 16811388.

Almost surely, 2^201664662000 is an apocalyptic number.

201664662000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201664662000 is an abundant number, since it is smaller than the sum of its proper divisors (448502227632).

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

201664662000 is a wasteful number, since it uses less digits than its factorization.

201664662000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33610803 (or 33610787 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 201664662000 in words is "two hundred one billion, six hundred sixty-four million, six hundred sixty-two thousand".