66046266 has 80 divisors (see below), whose sum is σ = 173926368. Its totient is φ = 18468000.

The previous prime is 66046249. The next prime is 66046283. The reversal of 66046266 is 66264066.

It is an interprime number because it is at equal distance from previous prime (66046249) and next prime (66046283).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 66046266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21741 + ... + 24591.

Almost surely, 2^66046266 is an apocalyptic number.

66046266 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 66046266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86963184).

66046266 is an abundant number, since it is smaller than the sum of its proper divisors (107880102).

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

66046266 is a wasteful number, since it uses less digits than its factorization.

66046266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889 (or 2880 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 66046266 is about 8126.8853812515. The cubic root of 66046266 is about 404.2184103141.

The spelling of 66046266 in words is "sixty-six million, forty-six thousand, two hundred sixty-six".