201563440270 has 64 divisors (see below), whose sum is σ = 374561832960. Its totient is φ = 78047622400.

The previous prime is 201563440259. The next prime is 201563440271. The reversal of 201563440270 is 72044365102.

201563440270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201563440271) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 32808819 + ... + 32814961.

It is an arithmetic number, because the mean of its divisors is an integer number (5852528640).

Almost surely, 2^201563440270 is an apocalyptic number.

201563440270 is a deficient number, since it is larger than the sum of its proper divisors (172998392690).

201563440270 is a wasteful number, since it uses less digits than its factorization.

201563440270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6801.

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 201563440270 in words is "two hundred one billion, five hundred sixty-three million, four hundred forty thousand, two hundred seventy".