67123956601 has 8 divisors (see below), whose sum is σ = 72400119624. Its totient is φ = 61863905280.

The previous prime is 67123956547. The next prime is 67123956611. The reversal of 67123956601 is 10665932176.

It can be written as a sum of positive squares in 4 ways, for example, as 23793371001 + 43330585600 = 154251^2 + 208160^2 .

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 67123956601 - 2²⁷ = 66989738873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67123956611) 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, 4019266 + ... + 4035931.

It is an arithmetic number, because the mean of its divisors is an integer number (9050014953).

Almost surely, 2^67123956601 is an apocalyptic number.

It is an amenable number.

67123956601 is a deficient number, since it is larger than the sum of its proper divisors (5276163023).

67123956601 is a wasteful number, since it uses less digits than its factorization.

67123956601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8055851.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 67123956601 in words is "sixty-seven billion, one hundred twenty-three million, nine hundred fifty-six thousand, six hundred one".