65170566255 has 16 divisors (see below), whose sum is σ = 105093955584. Its totient is φ = 34483952160.

The previous prime is 65170566239. The next prime is 65170566269. The reversal of 65170566255 is 55266507156.

It is a happy number.

It is not a de Polignac number, because 65170566255 - 2⁴ = 65170566239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17103231 + ... + 17107040.

It is an arithmetic number, because the mean of its divisors is an integer number (6568372224).

Almost surely, 2^65170566255 is an apocalyptic number.

65170566255 is a deficient number, since it is larger than the sum of its proper divisors (39923389329).

65170566255 is a wasteful number, since it uses less digits than its factorization.

65170566255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34210406.

The product of its (nonzero) digits is 1890000, while the sum is 48.

The spelling of 65170566255 in words is "sixty-five billion, one hundred seventy million, five hundred sixty-six thousand, two hundred fifty-five".