64545163207 has 16 divisors (see below), whose sum is σ = 80325849600. Its totient is φ = 50605279200.

The previous prime is 64545163187. The next prime is 64545163223. The reversal of 64545163207 is 70236154546.

64545163207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64545163207 - 2¹⁵ = 64545130439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64545163237) 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, 8363419 + ... + 8371132.

It is an arithmetic number, because the mean of its divisors is an integer number (5020365600).

Almost surely, 2^64545163207 is an apocalyptic number.

64545163207 is a deficient number, since it is larger than the sum of its proper divisors (15780686393).

64545163207 is a wasteful number, since it uses less digits than its factorization.

64545163207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16734606.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 64545163207 in words is "sixty-four billion, five hundred forty-five million, one hundred sixty-three thousand, two hundred seven".