64605636620041 has 8 divisors (see below), whose sum is σ = 70486424767584. Its totient is φ = 58726106548320.

The previous prime is 64605636620033. The next prime is 64605636620081. The reversal of 64605636620041 is 14002663650646.

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 64605636620041 - 2³ = 64605636620033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64605636620081) 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, 314411575 + ... + 314616988.

It is an arithmetic number, because the mean of its divisors is an integer number (8810803095948).

Almost surely, 2^{64605636620041} is an apocalyptic number.

It is an amenable number.

64605636620041 is a deficient number, since it is larger than the sum of its proper divisors (5880788147543).

64605636620041 is a wasteful number, since it uses less digits than its factorization.

64605636620041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629037911.

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 64605636620041 in words is "sixty-four trillion, six hundred five billion, six hundred thirty-six million, six hundred twenty thousand, forty-one".