866153047313883 has 16 divisors (see below), whose sum is σ = 1362428142012416. Its totient is φ = 478978643675520.

The previous prime is 866153047313797. The next prime is 866153047313893. The reversal of 866153047313883 is 388313740351668.

It is a happy number.

It is not a de Polignac number, because 866153047313883 - 2⁸ = 866153047313627 is a prime.

It is a super-2 number, since 2×866153047313883² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (866153047313893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665248115566 + ... + 665248116867.

It is an arithmetic number, because the mean of its divisors is an integer number (85151758875776).

Almost surely, 2^{866153047313883} is an apocalyptic number.

866153047313883 is a deficient number, since it is larger than the sum of its proper divisors (496275094698533).

866153047313883 is a wasteful number, since it uses less digits than its factorization.

866153047313883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330496232474.

The product of its (nonzero) digits is 209018880, while the sum is 66.

The spelling of 866153047313883 in words is "eight hundred sixty-six trillion, one hundred fifty-three billion, forty-seven million, three hundred thirteen thousand, eight hundred eighty-three".