201440265456 has 40 divisors (see below), whose sum is σ = 520527217360. Its totient is φ = 67128708096.

The previous prime is 201440265451. The next prime is 201440265527. The reversal of 201440265456 is 654562044102.

201440265456 is digitally balanced in base 2 and base 3, because in such bases 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 (201440265451) 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 7 ways as a sum of consecutive naturals, for example, 382921 + ... + 741288.

It is an arithmetic number, because the mean of its divisors is an integer number (13013180434).

Almost surely, 2^201440265456 is an apocalyptic number.

It is an amenable number.

201440265456 is an abundant number, since it is smaller than the sum of its proper divisors (319086951904).

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

201440265456 is a wasteful number, since it uses less digits than its factorization.

201440265456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127953 (or 1127947 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 201440265456 in words is "two hundred one billion, four hundred forty million, two hundred sixty-five thousand, four hundred fifty-six".