10866203613 has 6 divisors (see below), whose sum is σ = 15695627454. Its totient is φ = 7244135736.

The previous prime is 10866203573. The next prime is 10866203671. The reversal of 10866203613 is 31630266801.

10866203613 is a `hidden beast` number, since 10 + 8 + 6 + 6 + 20 + 3 + 613 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10263108249 + 603095364 = 101307^2 + 24558^2 .

It is not a de Polignac number, because 10866203613 - 2⁸ = 10866203357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10866203713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 603677970 + ... + 603677987.

It is an arithmetic number, because the mean of its divisors is an integer number (2615937909).

Almost surely, 2^10866203613 is an apocalyptic number.

It is an amenable number.

10866203613 is a deficient number, since it is larger than the sum of its proper divisors (4829423841).

10866203613 is a wasteful number, since it uses less digits than its factorization.

10866203613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207355963 (or 1207355960 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 10866203613 in words is "ten billion, eight hundred sixty-six million, two hundred three thousand, six hundred thirteen".