161015506510148 has 6 divisors (see below), whose sum is σ = 281777136392766. Its totient is φ = 80507753255072.

The previous prime is 161015506510147. The next prime is 161015506510207. The reversal of 161015506510148 is 841015605510161.

It can be written as a sum of positive squares in only one way, i.e., 113019181578304 + 47996324931844 = 10631048^2 + 6927938^2 .

It is a junction number, because it is equal to n+sod(n) for n = 161015506510099 and 161015506510108.

It is not an unprimeable number, because it can be changed into a prime (161015506510147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20126938313765 + ... + 20126938313772.

It is an arithmetic number, because the mean of its divisors is an integer number (46962856065461).

Almost surely, 2^{161015506510148} is an apocalyptic number.

It is an amenable number.

161015506510148 is a deficient number, since it is larger than the sum of its proper divisors (120761629882618).

161015506510148 is a wasteful number, since it uses less digits than its factorization.

161015506510148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40253876627541 (or 40253876627539 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 44.

The spelling of 161015506510148 in words is "one hundred sixty-one trillion, fifteen billion, five hundred six million, five hundred ten thousand, one hundred forty-eight".