66375236463 has 4 divisors (see below), whose sum is σ = 88500315288. Its totient is φ = 44250157640.

The previous prime is 66375236461. The next prime is 66375236503. The reversal of 66375236463 is 36463257366.

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 66375236463 - 2¹ = 66375236461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66375236461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11062539408 + ... + 11062539413.

It is an arithmetic number, because the mean of its divisors is an integer number (22125078822).

Almost surely, 2^66375236463 is an apocalyptic number.

66375236463 is a deficient number, since it is larger than the sum of its proper divisors (22125078825).

66375236463 is a wasteful number, since it uses less digits than its factorization.

66375236463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22125078824.

The product of its digits is 9797760, while the sum is 51.

The spelling of 66375236463 in words is "sixty-six billion, three hundred seventy-five million, two hundred thirty-six thousand, four hundred sixty-three".