161390669119 has 8 divisors (see below), whose sum is σ = 165772978560. Its totient is φ = 157066403736.

The previous prime is 161390669113. The next prime is 161390669129. The reversal of 161390669119 is 911966093161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161390669119 - 2¹¹ = 161390667071 is a prime.

It is a super-2 number, since 2×161390669119² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161390669113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14505379 + ... + 14516500.

It is an arithmetic number, because the mean of its divisors is an integer number (20721622320).

Almost surely, 2^161390669119 is an apocalyptic number.

161390669119 is a deficient number, since it is larger than the sum of its proper divisors (4382309441).

161390669119 is an equidigital number, since it uses as much as digits as its factorization.

161390669119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29022029.

The product of its (nonzero) digits is 472392, while the sum is 52.

The spelling of 161390669119 in words is "one hundred sixty-one billion, three hundred ninety million, six hundred sixty-nine thousand, one hundred nineteen".