161159436248 has 32 divisors (see below), whose sum is σ = 318118782000. Its totient is φ = 76328853120.

The previous prime is 161159436247. The next prime is 161159436323. The reversal of 161159436248 is 842634951161.

It is a junction number, because it is equal to n+sod(n) for n = 161159436196 and 161159436205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161159436241) 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, 1192778 + ... + 1320998.

Almost surely, 2^161159436248 is an apocalyptic number.

It is an amenable number.

161159436248 is a deficient number, since it is larger than the sum of its proper divisors (156959345752).

161159436248 is a wasteful number, since it uses less digits than its factorization.

161159436248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136515 (or 136511 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The spelling of 161159436248 in words is "one hundred sixty-one billion, one hundred fifty-nine million, four hundred thirty-six thousand, two hundred forty-eight".