67666701 has 8 divisors (see below), whose sum is σ = 90744480. Its totient is φ = 44850032.

The previous prime is 67666691. The next prime is 67666723. The reversal of 67666701 is 10766676.

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 67666701 - 2¹⁰ = 67665677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67666701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67666741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64671 + ... + 65708.

It is an arithmetic number, because the mean of its divisors is an integer number (11343060).

Almost surely, 2^67666701 is an apocalyptic number.

It is an amenable number.

67666701 is a deficient number, since it is larger than the sum of its proper divisors (23077779).

67666701 is a wasteful number, since it uses less digits than its factorization.

67666701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130555.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 67666701 is about 8225.9772063871. The cubic root of 67666701 is about 407.4975492595.

The spelling of 67666701 in words is "sixty-seven million, six hundred sixty-six thousand, seven hundred one".