66901334 has 4 divisors (see below), whose sum is σ = 100352004. Its totient is φ = 33450666.

The previous prime is 66901321. The next prime is 66901343. The reversal of 66901334 is 43310966.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66901334.

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 as a sum of consecutive naturals, namely, 16725332 + ... + 16725335.

It is an arithmetic number, because the mean of its divisors is an integer number (25088001).

Almost surely, 2^66901334 is an apocalyptic number.

66901334 is a deficient number, since it is larger than the sum of its proper divisors (33450670).

66901334 is a wasteful number, since it uses less digits than its factorization.

66901334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33450669.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 66901334 is about 8179.3235661636. The cubic root of 66901334 is about 405.9553406029.

The spelling of 66901334 in words is "sixty-six million, nine hundred one thousand, three hundred thirty-four".