66410245 has 32 divisors (see below), whose sum is σ = 92969856. Its totient is φ = 45379840.

The previous prime is 66410237. The next prime is 66410249. The reversal of 66410245 is 54201466.

It is not a de Polignac number, because 66410245 - 2³ = 66410237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66410249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112842 + ... + 113428.

It is an arithmetic number, because the mean of its divisors is an integer number (2905308).

Almost surely, 2^66410245 is an apocalyptic number.

It is an amenable number.

66410245 is a deficient number, since it is larger than the sum of its proper divisors (26559611).

66410245 is a wasteful number, since it uses less digits than its factorization.

66410245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 66410245 is about 8149.2481248272. The cubic root of 66410245 is about 404.9595956238.

The spelling of 66410245 in words is "sixty-six million, four hundred ten thousand, two hundred forty-five".