64535435040636 has 144 divisors (see below), whose sum is σ = 196258733798400. Its totient is φ = 17467292117376.

The previous prime is 64535435040533. The next prime is 64535435040653. The reversal of 64535435040636 is 63604053453546.

64535435040636 is a `hidden beast` number, since 6 + 4 + 5 + 3 + 543 + 50 + 40 + 6 + 3 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 90420226 + ... + 91131158.

It is an arithmetic number, because the mean of its divisors is an integer number (1362907873600).

Almost surely, 2^{64535435040636} is an apocalyptic number.

It is an amenable number.

64535435040636 is an abundant number, since it is smaller than the sum of its proper divisors (131723298757764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64535435040636 is a wasteful number, since it uses less digits than its factorization.

64535435040636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729928 (or 729923 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 54.

The spelling of 64535435040636 in words is "sixty-four trillion, five hundred thirty-five billion, four hundred thirty-five million, forty thousand, six hundred thirty-six".