866652880819 has 8 divisors (see below), whose sum is σ = 948295823040. Its totient is φ = 785485991400.

The previous prime is 866652880801. The next prime is 866652880829. The reversal of 866652880819 is 918088256668.

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

It is not a de Polignac number, because 866652880819 - 2⁵ = 866652880787 is a prime.

It is a super-2 number, since 2×866652880819² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (866652880829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119009389 + ... + 119016670.

It is an arithmetic number, because the mean of its divisors is an integer number (118536977880).

Almost surely, 2^866652880819 is an apocalyptic number.

866652880819 is a deficient number, since it is larger than the sum of its proper divisors (81642942221).

866652880819 is a wasteful number, since it uses less digits than its factorization.

866652880819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238026401.

The product of its (nonzero) digits is 79626240, while the sum is 67.

It can be divided in two parts, 866652 and 880819, that added together give a palindrome (1747471).

The spelling of 866652880819 in words is "eight hundred sixty-six billion, six hundred fifty-two million, eight hundred eighty thousand, eight hundred nineteen".