66724126 has 8 divisors (see below), whose sum is σ = 114384240. Its totient is φ = 28596048.

The previous prime is 66724123. The next prime is 66724129. The reversal of 66724126 is 62142766.

It is an interprime number because it is at equal distance from previous prime (66724123) and next prime (66724129).

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

It is a super-3 number, since 3×66724126³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66724091 and 66724100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66724123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2382991 + ... + 2383018.

It is an arithmetic number, because the mean of its divisors is an integer number (14298030).

Almost surely, 2^66724126 is an apocalyptic number.

66724126 is a deficient number, since it is larger than the sum of its proper divisors (47660114).

66724126 is a wasteful number, since it uses less digits than its factorization.

66724126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766018.

The product of its digits is 24192, while the sum is 34.

The square root of 66724126 is about 8168.4837026219. The cubic root of 66724126 is about 405.5965926768.

The spelling of 66724126 in words is "sixty-six million, seven hundred twenty-four thousand, one hundred twenty-six".