866825087423255 has 8 divisors (see below), whose sum is σ = 1040191973253312. Its totient is φ = 693458824375008.

The previous prime is 866825087423201. The next prime is 866825087423293. The reversal of 866825087423255 is 552324780528668.

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 866825087423255 - 2⁴⁴ = 849232901378839 is a prime.

It is a Duffinian number.

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, 152627864 + ... + 158205293.

It is an arithmetic number, because the mean of its divisors is an integer number (130023996656664).

Almost surely, 2^{866825087423255} is an apocalyptic number.

866825087423255 is a deficient number, since it is larger than the sum of its proper divisors (173366885830057).

866825087423255 is a wasteful number, since it uses less digits than its factorization.

866825087423255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311390905.

The product of its (nonzero) digits is 1548288000, while the sum is 71.

The spelling of 866825087423255 in words is "eight hundred sixty-six trillion, eight hundred twenty-five billion, eighty-seven million, four hundred twenty-three thousand, two hundred fifty-five".