866614012 has 24 divisors (see below), whose sum is σ = 1689649920. Its totient is φ = 385533360.

The previous prime is 866613973. The next prime is 866614031. The reversal of 866614012 is 210416668.

It is a super-2 number, since 2×866614012² = 1502039691589472288, which contains 22 as substring.

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, 207462 + ... + 211597.

It is an arithmetic number, because the mean of its divisors is an integer number (70402080).

Almost surely, 2^866614012 is an apocalyptic number.

It is an amenable number.

866614012 is a deficient number, since it is larger than the sum of its proper divisors (823035908).

866614012 is a wasteful number, since it uses less digits than its factorization.

866614012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419121 (or 419119 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 866614012 is about 29438.3085791287. The cubic root of 866614012 is about 953.4001931472.

The spelling of 866614012 in words is "eight hundred sixty-six million, six hundred fourteen thousand, twelve".