66020046 has 8 divisors (see below), whose sum is σ = 132040104. Its totient is φ = 22006680.

The previous prime is 66020029. The next prime is 66020077. The reversal of 66020046 is 64002066.

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

66020046 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 66019998 and 66020025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5501665 + ... + 5501676.

It is an arithmetic number, because the mean of its divisors is an integer number (16505013).

Almost surely, 2^66020046 is an apocalyptic number.

66020046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66020046 is a wasteful number, since it uses less digits than its factorization.

66020046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11003346.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 66020046 is about 8125.2720569837. The cubic root of 66020046 is about 404.1649124143.

It can be divided in two parts, 660 and 20046, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 66020046 in words is "sixty-six million, twenty thousand, forty-six".