66056042 has 8 divisors (see below), whose sum is σ = 106705956. Its totient is φ = 30487392.

The previous prime is 66056017. The next prime is 66056051. The reversal of 66056042 is 24065066.

It can be written as a sum of positive squares in 2 ways, for example, as 50993881 + 15062161 = 7141^2 + 3881^2 .

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 = 66055996 and 66056014.

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, 1270283 + ... + 1270334.

Almost surely, 2^66056042 is an apocalyptic number.

66056042 is a deficient number, since it is larger than the sum of its proper divisors (40649914).

66056042 is a wasteful number, since it uses less digits than its factorization.

66056042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540632.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 66056042 is about 8127.4868194295. The cubic root of 66056042 is about 404.2383531232.

The spelling of 66056042 in words is "sixty-six million, fifty-six thousand, forty-two", and thus it is an eban number.