66756126 has 16 divisors (see below), whose sum is σ = 133632000. Its totient is φ = 22232088.

The previous prime is 66756119. The next prime is 66756133. The reversal of 66756126 is 62165766.

It is an interprime number because it is at equal distance from previous prime (66756119) and next prime (66756133).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3325 + ... + 12023.

It is an arithmetic number, because the mean of its divisors is an integer number (8352000).

Almost surely, 2^66756126 is an apocalyptic number.

66756126 is an abundant number, since it is smaller than the sum of its proper divisors (66875874).

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

66756126 is a wasteful number, since it uses less digits than its factorization.

66756126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9983.

The product of its digits is 90720, while the sum is 39.

The square root of 66756126 is about 8170.4422156943. The cubic root of 66756126 is about 405.6614218844.

The spelling of 66756126 in words is "sixty-six million, seven hundred fifty-six thousand, one hundred twenty-six".