8285961257655 has 8 divisors (see below), whose sum is σ = 13257538012272. Its totient is φ = 4419179337408.

The previous prime is 8285961257647. The next prime is 8285961257711. The reversal of 8285961257655 is 5567521695828.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8285961257655 - 2³ = 8285961257647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8285961257655.

It is a congruent number.

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, 276198708574 + ... + 276198708603.

It is an arithmetic number, because the mean of its divisors is an integer number (1657192251534).

Almost surely, 2^{8285961257655} is an apocalyptic number.

8285961257655 is a deficient number, since it is larger than the sum of its proper divisors (4971576754617).

8285961257655 is a wasteful number, since it uses less digits than its factorization.

8285961257655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552397417185.

The product of its digits is 362880000, while the sum is 69.

The spelling of 8285961257655 in words is "eight trillion, two hundred eighty-five billion, nine hundred sixty-one million, two hundred fifty-seven thousand, six hundred fifty-five".