996156651697 has 8 divisors (see below), whose sum is σ = 1001082346056. Its totient is φ = 991239094272.

The previous prime is 996156651689. The next prime is 996156651731. The reversal of 996156651697 is 796156651699.

It can be written as a sum of positive squares in 4 ways, for example, as 385834776336 + 610321875361 = 621156^2 + 781231^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 996156651697 - 2³ = 996156651689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997156651697) 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, 1788708 + ... + 2278549.

It is an arithmetic number, because the mean of its divisors is an integer number (125135293257).

Almost surely, 2^996156651697 is an apocalyptic number.

It is an amenable number.

996156651697 is a deficient number, since it is larger than the sum of its proper divisors (4925694359).

996156651697 is a wasteful number, since it uses less digits than its factorization.

996156651697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068467.

The product of its digits is 165337200, while the sum is 70.

The spelling of 996156651697 in words is "nine hundred ninety-six billion, one hundred fifty-six million, six hundred fifty-one thousand, six hundred ninety-seven".