85255670462561 has 4 divisors (see below), whose sum is σ = 85271496655152. Its totient is φ = 85239844269972.

The previous prime is 85255670462477. The next prime is 85255670462569. The reversal of 85255670462561 is 16526407655258.

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 not a de Polignac number, because 85255670462561 - 2¹⁰ = 85255670461537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85255670462494 and 85255670462503.

It is not an unprimeable number, because it can be changed into a prime (85255670462569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7913088215 + ... + 7913098988.

It is an arithmetic number, because the mean of its divisors is an integer number (21317874163788).

Almost surely, 2^{85255670462561} is an apocalyptic number.

It is an amenable number.

85255670462561 is a deficient number, since it is larger than the sum of its proper divisors (15826192591).

85255670462561 is a wasteful number, since it uses less digits than its factorization.

85255670462561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15826192590.

The product of its (nonzero) digits is 120960000, while the sum is 62.

The spelling of 85255670462561 in words is "eighty-five trillion, two hundred fifty-five billion, six hundred seventy million, four hundred sixty-two thousand, five hundred sixty-one".