67661301 has 8 divisors (see below), whose sum is σ = 90551520. Its totient is φ = 44939312.

The previous prime is 67661287. The next prime is 67661311. The reversal of 67661301 is 10316676.

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

It is a cyclic number.

It is not a de Polignac number, because 67661301 - 2¹³ = 67653109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67661311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41115 + ... + 42728.

It is an arithmetic number, because the mean of its divisors is an integer number (11318940).

Almost surely, 2^67661301 is an apocalyptic number.

It is an amenable number.

67661301 is a deficient number, since it is larger than the sum of its proper divisors (22890219).

67661301 is a wasteful number, since it uses less digits than its factorization.

67661301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84115.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 67661301 is about 8225.6489713578. The cubic root of 67661301 is about 407.4867091403.

Adding to 67661301 its reverse (10316676), we get a palindrome (77977977).

The spelling of 67661301 in words is "sixty-seven million, six hundred sixty-one thousand, three hundred one".