3554663641 has 3 divisors (see below), whose sum is σ = 3554723263. Its totient is φ = 3554604020.

The previous prime is 3554663599. The next prime is 3554663653. The reversal of 3554663641 is 1463664553.

The square root of 3554663641 is 59621.

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., 2983453641 + 571210000 = 54621^2 + 23900^2 .

It is not a de Polignac number, because 3554663641 - 2⁹ = 3554663129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3554663341) 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, 29811 + ... + 89431.

Almost surely, 2^3554663641 is an apocalyptic number.

3554663641 is the 59621-st square number.

3554663641 is the 29811-st centered octagonal number.

It is an amenable number.

3554663641 is a deficient number, since it is larger than the sum of its proper divisors (59622).

3554663641 is an frugal number, since it uses more digits than its factorization.

3554663641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119242 (or 59621 counting only the distinct ones).

The product of its digits is 777600, while the sum is 43.

The cubic root of 3554663641 is about 1526.1580226529.

The spelling of 3554663641 in words is "three billion, five hundred fifty-four million, six hundred sixty-three thousand, six hundred forty-one".