66852403199 has 16 divisors (see below), whose sum is σ = 67684515360. Its totient is φ = 66026309760.

The previous prime is 66852403183. The next prime is 66852403217. The reversal of 66852403199 is 99130425866.

It is a cyclic number.

It is not a de Polignac number, because 66852403199 - 2⁴ = 66852403183 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 66852403199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66852403109) 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, 23900069 + ... + 23902865.

It is an arithmetic number, because the mean of its divisors is an integer number (4230282210).

Almost surely, 2^66852403199 is an apocalyptic number.

66852403199 is a deficient number, since it is larger than the sum of its proper divisors (832112161).

66852403199 is a wasteful number, since it uses less digits than its factorization.

66852403199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 66852403199 in words is "sixty-six billion, eight hundred fifty-two million, four hundred three thousand, one hundred ninety-nine".