66741574 has 8 divisors (see below), whose sum is σ = 103341888. Its totient is φ = 32294280.

The previous prime is 66741539. The next prime is 66741583. The reversal of 66741574 is 47514766.

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

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, 538177 + ... + 538300.

It is an arithmetic number, because the mean of its divisors is an integer number (12917736).

Almost surely, 2^66741574 is an apocalyptic number.

66741574 is a deficient number, since it is larger than the sum of its proper divisors (36600314).

66741574 is a wasteful number, since it uses less digits than its factorization.

66741574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076510.

The product of its digits is 141120, while the sum is 40.

The square root of 66741574 is about 8169.5516400841. The cubic root of 66741574 is about 405.6319433713.

It can be divided in two parts, 667415 and 74, that added together give a square (667489 = 817²).

The spelling of 66741574 in words is "sixty-six million, seven hundred forty-one thousand, five hundred seventy-four".