66426933 has 16 divisors (see below), whose sum is σ = 90959616. Its totient is φ = 43100160.

The previous prime is 66426931. The next prime is 66426947. The reversal of 66426933 is 33962466.

It is not a de Polignac number, because 66426933 - 2¹ = 66426931 is a prime.

It is a super-3 number, since 3×66426933³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66426891 and 66426900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66426931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25993 + ... + 28433.

It is an arithmetic number, because the mean of its divisors is an integer number (5684976).

Almost surely, 2^66426933 is an apocalyptic number.

It is an amenable number.

66426933 is a deficient number, since it is larger than the sum of its proper divisors (24532683).

66426933 is a wasteful number, since it uses less digits than its factorization.

66426933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684.

The product of its digits is 139968, while the sum is 39.

The square root of 66426933 is about 8150.2719586527. The cubic root of 66426933 is about 404.9935130801.

The spelling of 66426933 in words is "sixty-six million, four hundred twenty-six thousand, nine hundred thirty-three".