66960742 has 8 divisors (see below), whose sum is σ = 100477800. Its totient is φ = 33468144.

The previous prime is 66960721. The next prime is 66960743. The reversal of 66960742 is 24706966.

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 = 66960695 and 66960704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66960743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4234 + ... + 12322.

It is an arithmetic number, because the mean of its divisors is an integer number (12559725).

Almost surely, 2^66960742 is an apocalyptic number.

66960742 is a deficient number, since it is larger than the sum of its proper divisors (33517058).

66960742 is a wasteful number, since it uses less digits than its factorization.

66960742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12230.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 66960742 is about 8182.9543564656. The cubic root of 66960742 is about 406.0754670556.

The spelling of 66960742 in words is "sixty-six million, nine hundred sixty thousand, seven hundred forty-two".