268161466 has 4 divisors (see below), whose sum is σ = 402242202. Its totient is φ = 134080732.

The previous prime is 268161457. The next prime is 268161493. The reversal of 268161466 is 664161862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 266636241 + 1525225 = 16329^2 + 1235^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67040365 + ... + 67040368.

Almost surely, 2^268161466 is an apocalyptic number.

268161466 is a deficient number, since it is larger than the sum of its proper divisors (134080736).

268161466 is a wasteful number, since it uses less digits than its factorization.

268161466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134080735.

The product of its digits is 82944, while the sum is 40.

The square root of 268161466 is about 16375.6363540474. The cubic root of 268161466 is about 644.8600269145.

It can be divided in two parts, 26816 and 1466, that added together give a palindrome (28282).

The spelling of 268161466 in words is "two hundred sixty-eight million, one hundred sixty-one thousand, four hundred sixty-six".