64152663645040 has 40 divisors (see below), whose sum is σ = 152328452408640. Its totient is φ = 25115085340416.

The previous prime is 64152663645029. The next prime is 64152663645043. The reversal of 64152663645040 is 4054636625146.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64152663645043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8530935555 + ... + 8530943074.

It is an arithmetic number, because the mean of its divisors is an integer number (3808211310216).

Almost surely, 2^{64152663645040} is an apocalyptic number.

It is an amenable number.

64152663645040 is an abundant number, since it is smaller than the sum of its proper divisors (88175788763600).

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

64152663645040 is a wasteful number, since it uses less digits than its factorization.

64152663645040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17061878689 (or 17061878683 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 52.

The spelling of 64152663645040 in words is "sixty-four trillion, one hundred fifty-two billion, six hundred sixty-three million, six hundred forty-five thousand, forty".