66342044 has 6 divisors (see below), whose sum is σ = 116098584. Its totient is φ = 33171020.

The previous prime is 66342037. The next prime is 66342071. The reversal of 66342044 is 44024366.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66341998 and 66342016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8292752 + ... + 8292759.

It is an arithmetic number, because the mean of its divisors is an integer number (19349764).

Almost surely, 2^66342044 is an apocalyptic number.

It is an amenable number.

66342044 is a deficient number, since it is larger than the sum of its proper divisors (49756540).

66342044 is a wasteful number, since it uses less digits than its factorization.

66342044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16585515 (or 16585513 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 66342044 is about 8145.0625534737. The cubic root of 66342044 is about 404.8209216925.

The spelling of 66342044 in words is "sixty-six million, three hundred forty-two thousand, forty-four".