66076634 has 12 divisors (see below), whose sum is σ = 107326206. Its totient is φ = 30496752.

The previous prime is 66076589. The next prime is 66076639. The reversal of 66076634 is 43667066.

It can be written as a sum of positive squares in 3 ways, for example, as 11242609 + 54834025 = 3353^2 + 7405^2 .

It is a super-2 number, since 2×66076634² = 8732243121539912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66076639) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 97409 + ... + 98084.

Almost surely, 2^66076634 is an apocalyptic number.

66076634 is a deficient number, since it is larger than the sum of its proper divisors (41249572).

66076634 is a wasteful number, since it uses less digits than its factorization.

66076634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195521 (or 195508 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 66076634 is about 8128.7535329840. The cubic root of 66076634 is about 404.2803538804.

The spelling of 66076634 in words is "sixty-six million, seventy-six thousand, six hundred thirty-four".