64035065440 has 48 divisors (see below), whose sum is σ = 157860366048. Its totient is φ = 24500371456.

The previous prime is 64035065429. The next prime is 64035065441. The reversal of 64035065440 is 4456053046.

It is a self number, because there is not a number n which added to its sum of digits gives 64035065440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64035065441) by changing a digit.

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, 8696737 + ... + 8704096.

It is an arithmetic number, because the mean of its divisors is an integer number (3288757626).

Almost surely, 2^64035065440 is an apocalyptic number.

It is an amenable number.

64035065440 is an abundant number, since it is smaller than the sum of its proper divisors (93825300608).

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

64035065440 is a wasteful number, since it uses less digits than its factorization.

64035065440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17400871 (or 17400863 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 64035065440 in words is "sixty-four billion, thirty-five million, sixty-five thousand, four hundred forty".