996745161 has 8 divisors (see below), whose sum is σ = 1329270880. Its totient is φ = 664358112.

The previous prime is 996745129. The next prime is 996745177. The reversal of 996745161 is 161547699.

It is a happy number.

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

It is not a de Polignac number, because 996745161 - 2⁵ = 996745129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 996745161.

It is not an unprimeable number, because it can be changed into a prime (996745361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16540 + ... + 47613.

It is an arithmetic number, because the mean of its divisors is an integer number (166158860).

Almost surely, 2^996745161 is an apocalyptic number.

It is an amenable number.

996745161 is a deficient number, since it is larger than the sum of its proper divisors (332525719).

996745161 is a wasteful number, since it uses less digits than its factorization.

996745161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69335.

The product of its digits is 408240, while the sum is 48.

The square root of 996745161 is about 31571.2711337380. The cubic root of 996745161 is about 998.9138744250.

The spelling of 996745161 in words is "nine hundred ninety-six million, seven hundred forty-five thousand, one hundred sixty-one".