4552066661 has 4 divisors (see below), whose sum is σ = 4556194752. Its totient is φ = 4547938572.

The previous prime is 4552066657. The next prime is 4552066709. The reversal of 4552066661 is 1666602554.

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: 1666602554 = 2 ⋅833301277.

It is a cyclic number.

It is not a de Polignac number, because 4552066661 - 2² = 4552066657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4552066261) 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, 2062391 + ... + 2064596.

It is an arithmetic number, because the mean of its divisors is an integer number (1139048688).

Almost surely, 2^4552066661 is an apocalyptic number.

It is an amenable number.

4552066661 is a deficient number, since it is larger than the sum of its proper divisors (4128091).

4552066661 is a wasteful number, since it uses less digits than its factorization.

4552066661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128090.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 4552066661 is about 67469.0051875674. The cubic root of 4552066661 is about 1657.3066428070.

The spelling of 4552066661 in words is "four billion, five hundred fifty-two million, sixty-six thousand, six hundred sixty-one".