161227264 has 40 divisors (see below), whose sum is σ = 351437328. Its totient is φ = 73282560.

The previous prime is 161227247. The next prime is 161227267. The reversal of 161227264 is 462722161.

It is not an unprimeable number, because it can be changed into a prime (161227267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8682 + ... + 19945.

Almost surely, 2^161227264 is an apocalyptic number.

It is an amenable number.

161227264 is an abundant number, since it is smaller than the sum of its proper divisors (190210064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161227264 is an equidigital number, since it uses as much as digits as its factorization.

161227264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28656 (or 28640 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 161227264 is about 12697.5298385158. The cubic root of 161227264 is about 544.2680340054.

The spelling of 161227264 in words is "one hundred sixty-one million, two hundred twenty-seven thousand, two hundred sixty-four".