3228126661 has 4 divisors (see below), whose sum is σ = 3229311424. Its totient is φ = 3226941900.

The previous prime is 3228126653. The next prime is 3228126691. The reversal of 3228126661 is 1666218223.

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.

It is a cyclic number.

It is not a de Polignac number, because 3228126661 - 2³ = 3228126653 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 3228126661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3228126691) 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, 588285 + ... + 593746.

It is an arithmetic number, because the mean of its divisors is an integer number (807327856).

Almost surely, 2^3228126661 is an apocalyptic number.

It is an amenable number.

3228126661 is a deficient number, since it is larger than the sum of its proper divisors (1184763).

3228126661 is a wasteful number, since it uses less digits than its factorization.

3228126661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184762.

The product of its digits is 41472, while the sum is 37.

The square root of 3228126661 is about 56816.6055040250. The cubic root of 3228126661 is about 1477.9174906316.

The spelling of 3228126661 in words is "three billion, two hundred twenty-eight million, one hundred twenty-six thousand, six hundred sixty-one".