67082085557 has 4 divisors (see below), whose sum is σ = 67151172096. Its totient is φ = 67012999020.

The previous prime is 67082085509. The next prime is 67082085569. The reversal of 67082085557 is 75558028076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67082085557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67082085499 and 67082085508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67082085157) 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, 34541813 + ... + 34543754.

It is an arithmetic number, because the mean of its divisors is an integer number (16787793024).

Almost surely, 2^67082085557 is an apocalyptic number.

It is an amenable number.

67082085557 is a deficient number, since it is larger than the sum of its proper divisors (69086539).

67082085557 is an equidigital number, since it uses as much as digits as its factorization.

67082085557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69086538.

The product of its (nonzero) digits is 4704000, while the sum is 53.

The spelling of 67082085557 in words is "sixty-seven billion, eighty-two million, eighty-five thousand, five hundred fifty-seven".