66413226 has 32 divisors (see below), whose sum is σ = 145457856. Its totient is φ = 20048000.

The previous prime is 66413159. The next prime is 66413287. The reversal of 66413226 is 62231466.

It is a junction number, because it is equal to n+sod(n) for n = 66413193 and 66413202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16756 + ... + 20336.

It is an arithmetic number, because the mean of its divisors is an integer number (4545558).

Almost surely, 2^66413226 is an apocalyptic number.

66413226 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

66413226 is an abundant number, since it is smaller than the sum of its proper divisors (79044630).

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

66413226 is a wasteful number, since it uses less digits than its factorization.

66413226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878.

The product of its digits is 10368, while the sum is 30.

The square root of 66413226 is about 8149.4310230838. The cubic root of 66413226 is about 404.9656547616.

The spelling of 66413226 in words is "sixty-six million, four hundred thirteen thousand, two hundred twenty-six".