4204223756661 has 8 divisors (see below), whose sum is σ = 5605715568640. Its totient is φ = 2802773891232.

The previous prime is 4204223756657. The next prime is 4204223756693. The reversal of 4204223756661 is 1666573224024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4204223756661 - 2² = 4204223756657 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 4204223756661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4204223756261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10252021 + ... + 10654218.

It is an arithmetic number, because the mean of its divisors is an integer number (700714446080).

Almost surely, 2^{4204223756661} is an apocalyptic number.

It is an amenable number.

4204223756661 is a deficient number, since it is larger than the sum of its proper divisors (1401491811979).

4204223756661 is a wasteful number, since it uses less digits than its factorization.

4204223756661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20973275.

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 4204223756661 in words is "four trillion, two hundred four billion, two hundred twenty-three million, seven hundred fifty-six thousand, six hundred sixty-one".