66119245 has 8 divisors (see below), whose sum is σ = 79405560. Its totient is φ = 52853760.

The previous prime is 66119233. The next prime is 66119281. The reversal of 66119245 is 54291166.

It can be written as a sum of positive squares in 4 ways, for example, as 6084 + 66113161 = 78^2 + 8131^2 .

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

It is not a de Polignac number, because 66119245 - 2¹¹ = 66117197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66119245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2941 + ... + 11869.

It is an arithmetic number, because the mean of its divisors is an integer number (9925695).

Almost surely, 2^66119245 is an apocalyptic number.

It is an amenable number.

66119245 is a deficient number, since it is larger than the sum of its proper divisors (13286315).

66119245 is a wasteful number, since it uses less digits than its factorization.

66119245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10415.

The product of its digits is 12960, while the sum is 34.

The square root of 66119245 is about 8131.3741151173. The cubic root of 66119245 is about 404.3672382923.

The spelling of 66119245 in words is "sixty-six million, one hundred nineteen thousand, two hundred forty-five".