64005592918321 has 8 divisors (see below), whose sum is σ = 64389308062464. Its totient is φ = 63621883109280.

The previous prime is 64005592918301. The next prime is 64005592918331. The reversal of 64005592918321 is 12381929550046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64005592918321 - 2²³ = 64005584529713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64005592918301) 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, 24192136 + ... + 26707126.

It is an arithmetic number, because the mean of its divisors is an integer number (8048663507808).

Almost surely, 2^{64005592918321} is an apocalyptic number.

It is an amenable number.

64005592918321 is a deficient number, since it is larger than the sum of its proper divisors (383715144143).

64005592918321 is a wasteful number, since it uses less digits than its factorization.

64005592918321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2667551.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 64005592918321 in words is "sixty-four trillion, five billion, five hundred ninety-two million, nine hundred eighteen thousand, three hundred twenty-one".