66274742 has 8 divisors (see below), whose sum is σ = 99511632. Its totient is φ = 33104200.

The previous prime is 66274723. The next prime is 66274787. The reversal of 66274742 is 24747266.

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

It is a junction number, because it is equal to n+sod(n) for n = 66274696 and 66274705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14009 + ... + 18132.

It is an arithmetic number, because the mean of its divisors is an integer number (12438954).

Almost surely, 2^66274742 is an apocalyptic number.

66274742 is a deficient number, since it is larger than the sum of its proper divisors (33236890).

66274742 is a wasteful number, since it uses less digits than its factorization.

66274742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33174.

The product of its digits is 112896, while the sum is 38.

The square root of 66274742 is about 8140.9300451484. The cubic root of 66274742 is about 404.6839825089.

The spelling of 66274742 in words is "sixty-six million, two hundred seventy-four thousand, seven hundred forty-two".