201045666646040 has 16 divisors (see below), whose sum is σ = 452352749953680. Its totient is φ = 80418266658400.

The previous prime is 201045666645979. The next prime is 201045666646051. The reversal of 201045666646040 is 40646666540102.

It is a self number, because there is not a number n which added to its sum of digits gives 201045666646040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2513070833036 + ... + 2513070833115.

It is an arithmetic number, because the mean of its divisors is an integer number (28272046872105).

Almost surely, 2^{201045666646040} is an apocalyptic number.

201045666646040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201045666646040 is an abundant number, since it is smaller than the sum of its proper divisors (251307083307640).

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

201045666646040 is a wasteful number, since it uses less digits than its factorization.

201045666646040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026141666162 (or 5026141666158 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 50.

The spelling of 201045666646040 in words is "two hundred one trillion, forty-five billion, six hundred sixty-six million, six hundred forty-six thousand, forty".