161164345 has 8 divisors (see below), whose sum is σ = 195845760. Its totient is φ = 127299120.

The previous prime is 161164343. The next prime is 161164373. The reversal of 161164345 is 543461161.

161164345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 161164345 - 2¹ = 161164343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161164343) 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, 203611 + ... + 204400.

It is an arithmetic number, because the mean of its divisors is an integer number (24480720).

Almost surely, 2^161164345 is an apocalyptic number.

It is an amenable number.

161164345 is a deficient number, since it is larger than the sum of its proper divisors (34681415).

161164345 is an equidigital number, since it uses as much as digits as its factorization.

161164345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408095.

The product of its digits is 8640, while the sum is 31.

The square root of 161164345 is about 12695.0519888656. The cubic root of 161164345 is about 544.1972245256.

It can be divided in two parts, 1611 and 64345, that added together give a palindrome (65956).

The spelling of 161164345 in words is "one hundred sixty-one million, one hundred sixty-four thousand, three hundred forty-five".