161205280112708 has 48 divisors (see below), whose sum is σ = 305842240615296. Its totient is φ = 73904798822400.

The previous prime is 161205280112659. The next prime is 161205280112777. The reversal of 161205280112708 is 807211082502161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118935635 + ... + 120283397.

It is an arithmetic number, because the mean of its divisors is an integer number (6371713346152).

Almost surely, 2^{161205280112708} is an apocalyptic number.

It is an amenable number.

161205280112708 is a deficient number, since it is larger than the sum of its proper divisors (144636960502588).

161205280112708 is a wasteful number, since it uses less digits than its factorization.

161205280112708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363164 (or 1363162 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 44.

The spelling of 161205280112708 in words is "one hundred sixty-one trillion, two hundred five billion, two hundred eighty million, one hundred twelve thousand, seven hundred eight".