675066861 has 24 divisors (see below), whose sum is σ = 1117625600. Its totient is φ = 384634656.

The previous prime is 675066857. The next prime is 675066911. The reversal of 675066861 is 168660576.

675066861 is a `hidden beast` number, since 67 + 506 + 6 + 86 + 1 = 666.

It is not a de Polignac number, because 675066861 - 2² = 675066857 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 (675066851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6636 + ... + 37338.

Almost surely, 2^675066861 is an apocalyptic number.

It is an amenable number.

675066861 is a deficient number, since it is larger than the sum of its proper divisors (442558739).

675066861 is a wasteful number, since it uses less digits than its factorization.

675066861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31065 (or 31062 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 675066861 is about 25982.0488222157. The cubic root of 675066861 is about 877.2342838780.

The spelling of 675066861 in words is "six hundred seventy-five million, sixty-six thousand, eight hundred sixty-one".