66035436063 has 4 divisors (see below), whose sum is σ = 88047248088. Its totient is φ = 44023624040.

The previous prime is 66035436059. The next prime is 66035436107. The reversal of 66035436063 is 36063453066.

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 66035436063 - 2² = 66035436059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66035437063) 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, 11005906008 + ... + 11005906013.

It is an arithmetic number, because the mean of its divisors is an integer number (22011812022).

Almost surely, 2^66035436063 is an apocalyptic number.

66035436063 is a deficient number, since it is larger than the sum of its proper divisors (22011812025).

66035436063 is a wasteful number, since it uses less digits than its factorization.

66035436063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22011812024.

The product of its (nonzero) digits is 699840, while the sum is 42.

The spelling of 66035436063 in words is "sixty-six billion, thirty-five million, four hundred thirty-six thousand, sixty-three".