66743434 has 8 divisors (see below), whose sum is σ = 103344768. Its totient is φ = 32295180.

The previous prime is 66743423. The next prime is 66743437. The reversal of 66743434 is 43434766.

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

It is a super-2 number, since 2×66743434² = 8909371964224712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66743393 and 66743402.

It is not an unprimeable number, because it can be changed into a prime (66743437) 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, 538192 + ... + 538315.

It is an arithmetic number, because the mean of its divisors is an integer number (12918096).

Almost surely, 2^66743434 is an apocalyptic number.

66743434 is a deficient number, since it is larger than the sum of its proper divisors (36601334).

66743434 is a wasteful number, since it uses less digits than its factorization.

66743434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076540.

The product of its digits is 145152, while the sum is 37.

The square root of 66743434 is about 8169.6654766275. The cubic root of 66743434 is about 405.6357114795.

The spelling of 66743434 in words is "sixty-six million, seven hundred forty-three thousand, four hundred thirty-four".