7170063661 has 4 divisors (see below), whose sum is σ = 7172121024. Its totient is φ = 7168006300.

The previous prime is 7170063653. The next prime is 7170063673. The reversal of 7170063661 is 1663600717.

7170063661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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: 1663600717 = 9643 ⋅172519.

It is a cyclic number.

It is not a de Polignac number, because 7170063661 - 2³ = 7170063653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7170063661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7170063601) 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, 1023445 + ... + 1030426.

It is an arithmetic number, because the mean of its divisors is an integer number (1793030256).

Almost surely, 2^7170063661 is an apocalyptic number.

It is an amenable number.

7170063661 is a deficient number, since it is larger than the sum of its proper divisors (2057363).

7170063661 is a wasteful number, since it uses less digits than its factorization.

7170063661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057362.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 7170063661 is about 84676.2284292351. The cubic root of 7170063661 is about 1928.2988276855.

The spelling of 7170063661 in words is "seven billion, one hundred seventy million, sixty-three thousand, six hundred sixty-one".