161232111603364 has 12 divisors (see below), whose sum is σ = 282169830795804. Its totient is φ = 80612159947424.

The previous prime is 161232111603341. The next prime is 161232111603379. The reversal of 161232111603364 is 463306111232161.

It can be written as a sum of positive squares in 2 ways, for example, as 119003662854400 + 42228448748964 = 10908880^2 + 6498342^2 .

It is a super-2 number, since 2×161232111603364² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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, 973870447 + ... + 974035990.

It is an arithmetic number, because the mean of its divisors is an integer number (23514152566317).

Almost surely, 2^{161232111603364} is an apocalyptic number.

It is an amenable number.

161232111603364 is a deficient number, since it is larger than the sum of its proper divisors (120937719192440).

161232111603364 is a wasteful number, since it uses less digits than its factorization.

161232111603364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947927134 (or 1947927132 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 161232111603364 in words is "one hundred sixty-one trillion, two hundred thirty-two billion, one hundred eleven million, six hundred three thousand, three hundred sixty-four".