855148646 has 16 divisors (see below), whose sum is σ = 1406591568. Its totient is φ = 386688000.

The previous prime is 855148639. The next prime is 855148667. The reversal of 855148646 is 646841558.

It is a self number, because there is not a number n which added to its sum of digits gives 855148646.

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, 96455 + ... + 104946.

It is an arithmetic number, because the mean of its divisors is an integer number (87911973).

Almost surely, 2^855148646 is an apocalyptic number.

855148646 is a deficient number, since it is larger than the sum of its proper divisors (551442922).

855148646 is a wasteful number, since it uses less digits than its factorization.

855148646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201607.

The product of its digits is 921600, while the sum is 47.

The square root of 855148646 is about 29242.9247169294. The cubic root of 855148646 is about 949.1769958080.

The spelling of 855148646 in words is "eight hundred fifty-five million, one hundred forty-eight thousand, six hundred forty-six".