249974159966 has 8 divisors (see below), whose sum is σ = 374963450160. Its totient is φ = 124986343248.

The previous prime is 249974159959. The next prime is 249974159977. The reversal of 249974159966 is 669951479942.

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 249974159966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293855 + ... + 765701.

It is an arithmetic number, because the mean of its divisors is an integer number (46870431270).

Almost surely, 2^249974159966 is an apocalyptic number.

249974159966 is a deficient number, since it is larger than the sum of its proper divisors (124989290194).

249974159966 is a wasteful number, since it uses less digits than its factorization.

249974159966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736738.

The product of its digits is 264539520, while the sum is 71.

The spelling of 249974159966 in words is "two hundred forty-nine billion, nine hundred seventy-four million, one hundred fifty-nine thousand, nine hundred sixty-six".