67065222505 has 4 divisors (see below), whose sum is σ = 80478267012. Its totient is φ = 53652178000.

The previous prime is 67065222503. The next prime is 67065222517. The reversal of 67065222505 is 50522256076.

It is a happy number.

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 50455941376 + 16609281129 = 224624^2 + 128877^2 .

It is not a de Polignac number, because 67065222505 - 2¹ = 67065222503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67065222503) 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, 6706522246 + ... + 6706522255.

It is an arithmetic number, because the mean of its divisors is an integer number (20119566753).

Almost surely, 2^67065222505 is an apocalyptic number.

It is an amenable number.

67065222505 is a deficient number, since it is larger than the sum of its proper divisors (13413044507).

67065222505 is a wasteful number, since it uses less digits than its factorization.

67065222505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13413044506.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 67065222505 in words is "sixty-seven billion, sixty-five million, two hundred twenty-two thousand, five hundred five".