66413410 has 32 divisors (see below), whose sum is σ = 137168640. Its totient is φ = 22679232.

The previous prime is 66413401. The next prime is 66413411. The reversal of 66413410 is 1431466.

It is not an unprimeable number, because it can be changed into a prime (66413411) 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, 17067 + ... + 20593.

It is an arithmetic number, because the mean of its divisors is an integer number (4286520).

Almost surely, 2^66413410 is an apocalyptic number.

66413410 is an abundant number, since it is smaller than the sum of its proper divisors (70755230).

66413410 is a wasteful number, since it uses less digits than its factorization.

66413410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 66413410 is about 8149.4423122076. The cubic root of 66413410 is about 404.9660287515.

Adding to 66413410 its reverse (1431466), we get a palindrome (67844876).

The spelling of 66413410 in words is "sixty-six million, four hundred thirteen thousand, four hundred ten".