66256346 has 16 divisors (see below), whose sum is σ = 107498664. Its totient is φ = 30445824.

The previous prime is 66256343. The next prime is 66256357. The reversal of 66256346 is 64365266.

It can be written as a sum of positive squares in 4 ways, for example, as 53217025 + 13039321 = 7295^2 + 3611^2 .

It is not an unprimeable number, because it can be changed into a prime (66256343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590 + ... + 11526.

Almost surely, 2^66256346 is an apocalyptic number.

66256346 is a deficient number, since it is larger than the sum of its proper divisors (41242318).

66256346 is a wasteful number, since it uses less digits than its factorization.

66256346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11185.

The product of its digits is 155520, while the sum is 38.

The square root of 66256346 is about 8139.8001203961. The cubic root of 66256346 is about 404.6465360891.

The spelling of 66256346 in words is "sixty-six million, two hundred fifty-six thousand, three hundred forty-six".