994156660 has 48 divisors (see below), whose sum is σ = 2390403456. Its totient is φ = 340221312.

The previous prime is 994156649. The next prime is 994156687. The reversal of 994156660 is 66651499.

It is a self number, because there is not a number n which added to its sum of digits gives 994156660.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72514 + ... + 85126.

It is an arithmetic number, because the mean of its divisors is an integer number (49800072).

Almost surely, 2^994156660 is an apocalyptic number.

It is an amenable number.

994156660 is an abundant number, since it is smaller than the sum of its proper divisors (1396246796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

994156660 is a wasteful number, since it uses less digits than its factorization.

994156660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13192 (or 13190 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 994156660 is about 31530.2499197200. The cubic root of 994156660 is about 998.0484137889.

The spelling of 994156660 in words is "nine hundred ninety-four million, one hundred fifty-six thousand, six hundred sixty".