7226061661 has 8 divisors (see below), whose sum is σ = 8893614464. Its totient is φ = 5717323440.

The previous prime is 7226061659. The next prime is 7226061673. The reversal of 7226061661 is 1661606227.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7226061661 - 2¹ = 7226061659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7226061661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7226061611) 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, 39703545 + ... + 39703726.

It is an arithmetic number, because the mean of its divisors is an integer number (1111701808).

Almost surely, 2^7226061661 is an apocalyptic number.

It is an amenable number.

7226061661 is a deficient number, since it is larger than the sum of its proper divisors (1667552803).

7226061661 is a wasteful number, since it uses less digits than its factorization.

7226061661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79407291.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 7226061661 is about 85006.2448353061. The cubic root of 7226061661 is about 1933.3058023791.

Adding to 7226061661 its reverse (1661606227), we get a palindrome (8887667888).

The spelling of 7226061661 in words is "seven billion, two hundred twenty-six million, sixty-one thousand, six hundred sixty-one".