161663676259996 has 12 divisors (see below), whose sum is σ = 282911712630120. Its totient is φ = 80831758365680.

The previous prime is 161663676259991. The next prime is 161663676259997. The reversal of 161663676259996 is 699952676366161.

It is a super-2 number, since 2×161663676259996² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161663676259991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15258691 + ... + 23582938.

It is an arithmetic number, because the mean of its divisors is an integer number (23575976052510).

Almost surely, 2^{161663676259996} is an apocalyptic number.

It is an amenable number.

161663676259996 is a deficient number, since it is larger than the sum of its proper divisors (121248036370124).

161663676259996 is a wasteful number, since it uses less digits than its factorization.

161663676259996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39882164 (or 39882162 counting only the distinct ones).

The product of its digits is 7142567040, while the sum is 82.

The spelling of 161663676259996 in words is "one hundred sixty-one trillion, six hundred sixty-three billion, six hundred seventy-six million, two hundred fifty-nine thousand, nine hundred ninety-six".