860157866 has 8 divisors (see below), whose sum is σ = 1291156740. Its totient is φ = 429772288.

The previous prime is 860157863. The next prime is 860157871. The reversal of 860157866 is 668751068.

It can be written as a sum of positive squares in 2 ways, for example, as 805708225 + 54449641 = 28385^2 + 7379^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 860157866.

It is not an unprimeable number, because it can be changed into a prime (860157863) 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 3 ways as a sum of consecutive naturals, for example, 149801 + ... + 155436.

Almost surely, 2^860157866 is an apocalyptic number.

860157866 is a deficient number, since it is larger than the sum of its proper divisors (430998874).

860157866 is a wasteful number, since it uses less digits than its factorization.

860157866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306648.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 860157866 is about 29328.4480666809. The cubic root of 860157866 is about 951.0267259627.

The spelling of 860157866 in words is "eight hundred sixty million, one hundred fifty-seven thousand, eight hundred sixty-six".