5670551605661 has 16 divisors (see below), whose sum is σ = 5837721870336. Its totient is φ = 5505333474816.

The previous prime is 5670551605651. The next prime is 5670551605679. The reversal of 5670551605661 is 1665061550765.

It is a cyclic number.

It is not a de Polignac number, because 5670551605661 - 2³⁸ = 5395673698717 is a prime.

It is a super-3 number, since 3×5670551605661³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5670551605651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39544685 + ... + 39687821.

It is an arithmetic number, because the mean of its divisors is an integer number (364857616896).

Almost surely, 2^{5670551605661} is an apocalyptic number.

It is an amenable number.

5670551605661 is a deficient number, since it is larger than the sum of its proper divisors (167170264675).

5670551605661 is a wasteful number, since it uses less digits than its factorization.

5670551605661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149948.

The product of its (nonzero) digits is 5670000, while the sum is 53.

The spelling of 5670551605661 in words is "five trillion, six hundred seventy billion, five hundred fifty-one million, six hundred five thousand, six hundred sixty-one".