66126635 has 8 divisors (see below), whose sum is σ = 79478496. Its totient is φ = 52816960.

The previous prime is 66126611. The next prime is 66126637. The reversal of 66126635 is 53662166.

66126635 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66126635 - 2¹⁴ = 66110251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66126595 and 66126604.

It is not an unprimeable number, because it can be changed into a prime (66126637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6986 + ... + 13455.

It is an arithmetic number, because the mean of its divisors is an integer number (9934812).

Almost surely, 2^66126635 is an apocalyptic number.

66126635 is a deficient number, since it is larger than the sum of its proper divisors (13351861).

66126635 is a wasteful number, since it uses less digits than its factorization.

66126635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21093.

The product of its digits is 38880, while the sum is 35.

The square root of 66126635 is about 8131.8285151619. The cubic root of 66126635 is about 404.3823028047.

The spelling of 66126635 in words is "sixty-six million, one hundred twenty-six thousand, six hundred thirty-five".