65440150256 has 30 divisors (see below), whose sum is σ = 137293634520. Its totient is φ = 30203145024.

The previous prime is 65440150249. The next prime is 65440150261. The reversal of 65440150256 is 65205104456.

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 5 ways as a sum of consecutive naturals, for example, 12097916 + ... + 12103323.

It is an arithmetic number, because the mean of its divisors is an integer number (4576454484).

Almost surely, 2^65440150256 is an apocalyptic number.

It is an amenable number.

65440150256 is an abundant number, since it is smaller than the sum of its proper divisors (71853484264).

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

65440150256 is a wasteful number, since it uses less digits than its factorization.

65440150256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24201273 (or 24201254 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 65440150256 in words is "sixty-five billion, four hundred forty million, one hundred fifty thousand, two hundred fifty-six".