161928070412 has 24 divisors (see below), whose sum is σ = 290598431760. Its totient is φ = 78904202240.

The previous prime is 161928070379. The next prime is 161928070427. The reversal of 161928070412 is 214070829161.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 161928070412.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 379058 + ... + 683769.

It is an arithmetic number, because the mean of its divisors is an integer number (12108267990).

Almost surely, 2^161928070412 is an apocalyptic number.

It is an amenable number.

161928070412 is a deficient number, since it is larger than the sum of its proper divisors (128670361348).

161928070412 is a wasteful number, since it uses less digits than its factorization.

161928070412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063801 (or 1063799 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

Adding to 161928070412 its reverse (214070829161), we get a palindrome (375998899573).

The spelling of 161928070412 in words is "one hundred sixty-one billion, nine hundred twenty-eight million, seventy thousand, four hundred twelve".