64228660163 has 4 divisors (see below), whose sum is σ = 64533061608. Its totient is φ = 63924258720.

The previous prime is 64228660147. The next prime is 64228660183. The reversal of 64228660163 is 36106682246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64228660163 - 2⁴ = 64228660147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64228660183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152200406 + ... + 152200827.

It is an arithmetic number, because the mean of its divisors is an integer number (16133265402).

Almost surely, 2^64228660163 is an apocalyptic number.

64228660163 is a deficient number, since it is larger than the sum of its proper divisors (304401445).

64228660163 is a wasteful number, since it uses less digits than its factorization.

64228660163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304401444.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 64228660163 in words is "sixty-four billion, two hundred twenty-eight million, six hundred sixty thousand, one hundred sixty-three".