161078265288 has 48 divisors (see below), whose sum is σ = 436384166400. Its totient is φ = 53676689760.

The previous prime is 161078265287. The next prime is 161078265317. The reversal of 161078265288 is 882562870161.

161078265288 is a `hidden beast` number, since 1 + 6 + 107 + 8 + 2 + 6 + 528 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (161078265287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91168 + ... + 574863.

It is an arithmetic number, because the mean of its divisors is an integer number (9091336800).

Almost surely, 2^161078265288 is an apocalyptic number.

161078265288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

161078265288 is an abundant number, since it is smaller than the sum of its proper divisors (275305901112).

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

161078265288 is a wasteful number, since it uses less digits than its factorization.

161078265288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669402 (or 669395 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 161078265288 in words is "one hundred sixty-one billion, seventy-eight million, two hundred sixty-five thousand, two hundred eighty-eight".