435772937161 has 3 divisors (see below), whose sum is σ = 435773597293. Its totient is φ = 435772277030.

The previous prime is 435772937137. The next prime is 435772937177. The reversal of 435772937161 is 161739277534.

It is a happy number.

The square root of 435772937161 is 660131.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 161739277534 = 2 ⋅80869638767.

It is not a de Polignac number, because 435772937161 - 2⁵ = 435772937129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (435772907161) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 330066 + ... + 990196.

Almost surely, 2^435772937161 is an apocalyptic number.

435772937161 is the 660131-st square number.

435772937161 is the 330066-th centered octagonal number.

It is an amenable number.

435772937161 is a deficient number, since it is larger than the sum of its proper divisors (660132).

435772937161 is an frugal number, since it uses more digits than its factorization.

435772937161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320262 (or 660131 counting only the distinct ones).

The product of its digits is 6667920, while the sum is 55.

The spelling of 435772937161 in words is "four hundred thirty-five billion, seven hundred seventy-two million, nine hundred thirty-seven thousand, one hundred sixty-one".