996699521351 has 2 divisors, whose sum is σ = 996699521352. Its totient is φ = 996699521350.

The previous prime is 996699521347. The next prime is 996699521359. The reversal of 996699521351 is 153125996699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 996699521351 - 2² = 996699521347 is a prime.

It is a super-3 number, since 3×996699521351³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996699521359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498349760675 + 498349760676.

It is an arithmetic number, because the mean of its divisors is an integer number (498349760676).

Almost surely, 2^996699521351 is an apocalyptic number.

996699521351 is a deficient number, since it is larger than the sum of its proper divisors (1).

996699521351 is an equidigital number, since it uses as much as digits as its factorization.

996699521351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35429400, while the sum is 65.

The spelling of 996699521351 in words is "nine hundred ninety-six billion, six hundred ninety-nine million, five hundred twenty-one thousand, three hundred fifty-one".