161928070379 has 2 divisors, whose sum is σ = 161928070380. Its totient is φ = 161928070378.

The previous prime is 161928070333. The next prime is 161928070427. The reversal of 161928070379 is 973070829161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161928070379 - 2¹² = 161928066283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161928070379.

It is not a weakly prime, because it can be changed into another prime (161928070979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80964035189 + 80964035190.

It is an arithmetic number, because the mean of its divisors is an integer number (80964035190).

Almost surely, 2^161928070379 is an apocalyptic number.

161928070379 is a deficient number, since it is larger than the sum of its proper divisors (1).

161928070379 is an equidigital number, since it uses as much as digits as its factorization.

161928070379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 161928070379 in words is "one hundred sixty-one billion, nine hundred twenty-eight million, seventy thousand, three hundred seventy-nine".