64358339040 has 72 divisors (see below), whose sum is σ = 219622836888. Its totient is φ = 17162223360.

The previous prime is 64358339027. The next prime is 64358339047. The reversal of 64358339040 is 4093385346.

64358339040 is a `hidden beast` number, since 64 + 3 + 583 + 3 + 9 + 0 + 4 + 0 = 666.

64358339040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64358339047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22345206 + ... + 22348085.

It is an arithmetic number, because the mean of its divisors is an integer number (3050317179).

Almost surely, 2^64358339040 is an apocalyptic number.

64358339040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64358339040 is an abundant number, since it is smaller than the sum of its proper divisors (155264497848).

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

64358339040 is a wasteful number, since it uses less digits than its factorization.

64358339040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44693312 (or 44693301 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 64358339040 in words is "sixty-four billion, three hundred fifty-eight million, three hundred thirty-nine thousand, forty".