201664450610 has 16 divisors (see below), whose sum is σ = 414852584256. Its totient is φ = 69142097328.

The previous prime is 201664450579. The next prime is 201664450621. The reversal of 201664450610 is 16054466102.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1440460292 + ... + 1440460431.

It is an arithmetic number, because the mean of its divisors is an integer number (25928286516).

Almost surely, 2^201664450610 is an apocalyptic number.

201664450610 is an abundant number, since it is smaller than the sum of its proper divisors (213188133646).

201664450610 is a wasteful number, since it uses less digits than its factorization.

201664450610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880920737.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 201664450610 in words is "two hundred one billion, six hundred sixty-four million, four hundred fifty thousand, six hundred ten".