64775044601 has 16 divisors (see below), whose sum is σ = 68118361344. Its totient is φ = 61477356864.

The previous prime is 64775044591. The next prime is 64775044627. The reversal of 64775044601 is 10644057746.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64775044601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64775044661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1670900 + ... + 1709226.

It is an arithmetic number, because the mean of its divisors is an integer number (4257397584).

Almost surely, 2^64775044601 is an apocalyptic number.

It is an amenable number.

64775044601 is a deficient number, since it is larger than the sum of its proper divisors (3343316743).

64775044601 is a wasteful number, since it uses less digits than its factorization.

64775044601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38920.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 64775044601 in words is "sixty-four billion, seven hundred seventy-five million, forty-four thousand, six hundred one".