67132306772665 has 8 divisors (see below), whose sum is σ = 81297839395080. Its totient is φ = 53213131239552.

The previous prime is 67132306772653. The next prime is 67132306772689. The reversal of 67132306772665 is 56627760323176.

It can be written as a sum of positive squares in 4 ways, for example, as 1594085530041 + 65538221242624 = 1262571^2 + 8095568^2 .

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 67132306772665 - 2¹³ = 67132306764473 is a prime.

It is a super-2 number, since 2×67132306772665² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61589271724 + ... + 61589272813.

It is an arithmetic number, because the mean of its divisors is an integer number (10162229924385).

Almost surely, 2^{67132306772665} is an apocalyptic number.

It is an amenable number.

67132306772665 is a deficient number, since it is larger than the sum of its proper divisors (14165532622415).

67132306772665 is a wasteful number, since it uses less digits than its factorization.

67132306772665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123178544651.

The product of its (nonzero) digits is 80015040, while the sum is 61.

The spelling of 67132306772665 in words is "sixty-seven trillion, one hundred thirty-two billion, three hundred six million, seven hundred seventy-two thousand, six hundred sixty-five".