4455345771361 has 3 divisors (see below), whose sum is σ = 4455347882131. Its totient is φ = 4455343660592.

The previous prime is 4455345771347. The next prime is 4455345771367. The reversal of 4455345771361 is 1631775435544.

The square root of 4455345771361 is 2110769.

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.

It can be written as a sum of positive squares in only one way, i.e., 131275057761 + 4324070713600 = 362319^2 + 2079440^2 .

It is not a de Polignac number, because 4455345771361 - 2⁵ = 4455345771329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4455345771367) 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, 1055385 + ... + 3166153.

Almost surely, 2^{4455345771361} is an apocalyptic number.

4455345771361 is the 2110769-th square number.

4455345771361 is the 1055385-th centered octagonal number.

It is an amenable number.

4455345771361 is a deficient number, since it is larger than the sum of its proper divisors (2110770).

4455345771361 is an frugal number, since it uses more digits than its factorization.

4455345771361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221538 (or 2110769 counting only the distinct ones).

The product of its digits is 21168000, while the sum is 55.

The spelling of 4455345771361 in words is "four trillion, four hundred fifty-five billion, three hundred forty-five million, seven hundred seventy-one thousand, three hundred sixty-one".