160401665434 has 4 divisors (see below), whose sum is σ = 240602498154. Its totient is φ = 80200832716.

The previous prime is 160401665329. The next prime is 160401665441. The reversal of 160401665434 is 434566104061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434566104061 = 84919 ⋅5117419.

It can be written as a sum of positive squares in only one way, i.e., 140847838209 + 19553827225 = 375297^2 + 139835^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40100416357 + ... + 40100416360.

Almost surely, 2^160401665434 is an apocalyptic number.

160401665434 is a deficient number, since it is larger than the sum of its proper divisors (80200832720).

160401665434 is an equidigital number, since it uses as much as digits as its factorization.

160401665434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80200832719.

The product of its (nonzero) digits is 207360, while the sum is 40.

Adding to 160401665434 its reverse (434566104061), we get a palindrome (594967769495).

The spelling of 160401665434 in words is "one hundred sixty billion, four hundred one million, six hundred sixty-five thousand, four hundred thirty-four".