67661006 has 8 divisors (see below), whose sum is σ = 115990320. Its totient is φ = 28997568.

The previous prime is 67660993. The next prime is 67661021. The reversal of 67661006 is 60016676.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2416451 + ... + 2416478.

It is an arithmetic number, because the mean of its divisors is an integer number (14498790).

Almost surely, 2^67661006 is an apocalyptic number.

67661006 is a deficient number, since it is larger than the sum of its proper divisors (48329314).

67661006 is a wasteful number, since it uses less digits than its factorization.

67661006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832938.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 67661006 is about 8225.6310396224. The cubic root of 67661006 is about 407.4861169320.

The spelling of 67661006 in words is "sixty-seven million, six hundred sixty-one thousand, six".