866255465 has 8 divisors (see below), whose sum is σ = 1039858560. Its totient is φ = 692769712.

The previous prime is 866255431. The next prime is 866255471. The reversal of 866255465 is 564552668.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-866255465 is a prime.

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, 12179 + ... + 43368.

It is an arithmetic number, because the mean of its divisors is an integer number (129982320).

Almost surely, 2^866255465 is an apocalyptic number.

It is an amenable number.

866255465 is a deficient number, since it is larger than the sum of its proper divisors (173603095).

866255465 is a wasteful number, since it uses less digits than its factorization.

866255465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58671.

The product of its digits is 1728000, while the sum is 47.

The square root of 866255465 is about 29432.2181461065. The cubic root of 866255465 is about 953.2686905680.

The spelling of 866255465 in words is "eight hundred sixty-six million, two hundred fifty-five thousand, four hundred sixty-five".