161331092428248 has 96 divisors (see below), whose sum is σ = 451065140797440. Its totient is φ = 52038597977280.

The previous prime is 161331092428237. The next prime is 161331092428307. The reversal of 161331092428248 is 842824290133161.

It is a happy number.

161331092428248 is a `hidden beast` number, since 1 + 6 + 1 + 3 + 310 + 9 + 2 + 4 + 282 + 48 = 666.

161331092428248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 161331092428194 and 161331092428203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29011815 + ... + 34122537.

It is an arithmetic number, because the mean of its divisors is an integer number (4698595216640).

Almost surely, 2^{161331092428248} is an apocalyptic number.

161331092428248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

161331092428248 is an abundant number, since it is smaller than the sum of its proper divisors (289734048369192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161331092428248 is a wasteful number, since it uses less digits than its factorization.

161331092428248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5124909 (or 5124902 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 161331092428248 in words is "one hundred sixty-one trillion, three hundred thirty-one billion, ninety-two million, four hundred twenty-eight thousand, two hundred forty-eight".