64235416205 has 16 divisors (see below), whose sum is σ = 79257443760. Its totient is φ = 49956162048.

The previous prime is 64235416177. The next prime is 64235416207. The reversal of 64235416205 is 50261453246.

It can be written as a sum of positive squares in 8 ways, for example, as 2215490761 + 62019925444 = 47069^2 + 249038^2 .

It is a cyclic number.

It is not a de Polignac number, because 64235416205 - 2²⁶ = 64168307341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64235416207) 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, 1083032 + ... + 1140801.

It is an arithmetic number, because the mean of its divisors is an integer number (4953590235).

Almost surely, 2^64235416205 is an apocalyptic number.

It is an amenable number.

64235416205 is a deficient number, since it is larger than the sum of its proper divisors (15022027555).

64235416205 is a wasteful number, since it uses less digits than its factorization.

64235416205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224000.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 64235416205 in words is "sixty-four billion, two hundred thirty-five million, four hundred sixteen thousand, two hundred five".