5675731661 has 8 divisors (see below), whose sum is σ = 6135926880. Its totient is φ = 5231683728.

The previous prime is 5675731631. The next prime is 5675731679. The reversal of 5675731661 is 1661375765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5675731661 - 2¹⁸ = 5675469517 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5675731601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4036091 + ... + 4037496.

It is an arithmetic number, because the mean of its divisors is an integer number (766990860).

Almost surely, 2^5675731661 is an apocalyptic number.

It is an amenable number.

5675731661 is a deficient number, since it is larger than the sum of its proper divisors (460195219).

5675731661 is a wasteful number, since it uses less digits than its factorization.

5675731661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8073643.

The product of its digits is 793800, while the sum is 47.

The square root of 5675731661 is about 75337.4519147018. The cubic root of 5675731661 is about 1783.7772396633. Note that the first 3 decimals are identical.

The spelling of 5675731661 in words is "five billion, six hundred seventy-five million, seven hundred thirty-one thousand, six hundred sixty-one".