67112661001 has 4 divisors (see below), whose sum is σ = 67113510292. Its totient is φ = 67111811712.

The previous prime is 67112660933. The next prime is 67112661029. The reversal of 67112661001 is 10016621176.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58777153600 + 8335507401 = 242440^2 + 91299^2 .

It is a cyclic number.

It is not a de Polignac number, because 67112661001 - 2¹³ = 67112652809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67112161001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292380 + ... + 468733.

It is an arithmetic number, because the mean of its divisors is an integer number (16778377573).

Almost surely, 2^67112661001 is an apocalyptic number.

It is an amenable number.

67112661001 is a deficient number, since it is larger than the sum of its proper divisors (849291).

67112661001 is an equidigital number, since it uses as much as digits as its factorization.

67112661001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849290.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 67112661001 in words is "sixty-seven billion, one hundred twelve million, six hundred sixty-one thousand, one".