3551668201 has 4 divisors (see below), whose sum is σ = 3578780304. Its totient is φ = 3524556100.

The previous prime is 3551668181. The next prime is 3551668217. The reversal of 3551668201 is 1028661553.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1028661553 = 181 ⋅5683213.

It is a cyclic number.

It is not a de Polignac number, because 3551668201 - 2²⁷ = 3417450473 is a prime.

It is a super-2 number, since 2×3551668201² = 25228694019989152802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3551668301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13555855 + ... + 13556116.

It is an arithmetic number, because the mean of its divisors is an integer number (894695076).

Almost surely, 2^3551668201 is an apocalyptic number.

It is an amenable number.

3551668201 is a deficient number, since it is larger than the sum of its proper divisors (27112103).

3551668201 is a wasteful number, since it uses less digits than its factorization.

3551668201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27112102.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 3551668201 is about 59595.8740266472. The cubic root of 3551668201 is about 1525.7292151335.

The spelling of 3551668201 in words is "three billion, five hundred fifty-one million, six hundred sixty-eight thousand, two hundred one".