66378232595 has 8 divisors (see below), whose sum is σ = 79656886464. Its totient is φ = 53100581184.

The previous prime is 66378232573. The next prime is 66378232597. The reversal of 66378232595 is 59523287366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66378232595 - 2⁸ = 66378232339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66378232595.

It is not an unprimeable number, because it can be changed into a prime (66378232597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96299 + ... + 376868.

It is an arithmetic number, because the mean of its divisors is an integer number (9957110808).

Almost surely, 2^66378232595 is an apocalyptic number.

66378232595 is a deficient number, since it is larger than the sum of its proper divisors (13278653869).

66378232595 is a wasteful number, since it uses less digits than its factorization.

66378232595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501229.

The product of its digits is 16329600, while the sum is 56.

The spelling of 66378232595 in words is "sixty-six billion, three hundred seventy-eight million, two hundred thirty-two thousand, five hundred ninety-five".