161614814828 has 12 divisors (see below), whose sum is σ = 282829212120. Its totient is φ = 80806468512.

The previous prime is 161614814789. The next prime is 161614814849. The reversal of 161614814828 is 828418416161.

It is a super-2 number, since 2×161614814828² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276083 + ... + 632021.

It is an arithmetic number, because the mean of its divisors is an integer number (23569101010).

Almost surely, 2^161614814828 is an apocalyptic number.

It is an amenable number.

161614814828 is a deficient number, since it is larger than the sum of its proper divisors (121214397292).

161614814828 is a wasteful number, since it uses less digits than its factorization.

161614814828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469456 (or 469454 counting only the distinct ones).

The product of its digits is 589824, while the sum is 50.

The spelling of 161614814828 in words is "one hundred sixty-one billion, six hundred fourteen million, eight hundred fourteen thousand, eight hundred twenty-eight".