66112410 has 128 divisors (see below), whose sum is σ = 198987264. Its totient is φ = 13685760.

The previous prime is 66112379. The next prime is 66112433. The reversal of 66112410 is 1421166.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 166332 + ... + 166728.

It is an arithmetic number, because the mean of its divisors is an integer number (1554588).

Almost surely, 2^66112410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66112410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99493632).

66112410 is an abundant number, since it is smaller than the sum of its proper divisors (132874854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66112410 is a wasteful number, since it uses less digits than its factorization.

66112410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 66112410 is about 8130.9538185873. The cubic root of 66112410 is about 404.3533041479.

Adding to 66112410 its reverse (1421166), we get a palindrome (67533576).

The spelling of 66112410 in words is "sixty-six million, one hundred twelve thousand, four hundred ten".